No one said the hardest thing about pregnancy is giving up hot tubs and sushi for nine months. We all know that carrying a baby can come with all kinds of annoying symptoms, like bloating and backaches. And while there are some good things that tend to happen when pregnant — the elusive glow! thick hair! no period! — there tend to be more discomforts than joys, mostly thanks to raging hormones, increased blood supply, and weight gain.

Like most things in life, pregnancy symptoms vary from person to person. There are a few lucky moms-to-be who breeze through pregnancy with a slight discomfort or two. Many of us are plagued by a bunch of weird body changes that are slightly freaky but overall manageable. And some have to deal with at least one particularly nagging thing that makes it almost impossible to function (hello severe morning sickness and sciatica!).

Some of these symptoms are notorious (like fatigue and cravings), but others are ones we don’t always hear about (vision changes? And how about that discharge? Whoa!).

More from CafeMom: 11 Very Early Pregnancy Symptoms That Aren’t Just Our Imaginations Run Wild

It’s important for moms-to-be to keep their doctor in the loop about any symptoms they’re having. There are many that are just par for the pregnancy course — like swelling — but could also be a sign of a complication, so monitoring the situation is key.

Read up on the most common bodily changes that can happen during pregnancy. And hang in there — all will be worth it when baby arrives!

Sore or Tender Breasts
One of the most common early pregnancy signs is breasts that are sore or tender to the touch. Yep, the body may start prepping for breastfeeding as quickly as a week or two after conception — before she even misses her period. But some moms-to-be don’t necessarily notice, since PMS boobs can feel similar.

Mood Swings
Crying at cheesy commercials. Suddenly lashing out at a spouse for something silly. Pregnant woman being moody isn’t a stereotype — it’s often a reality. Pregnancy mood swings are usually blamed on the hormone changes going on while making a baby, but stress, fatigue, and dealing with a bunch of other symptoms can certainly make a mom-to-be grumpy too.

Implantation Cramps
Super quick biology lesson: Once a human egg gets fertilized, it has to implant itself into Mom’s uterine wall where it will hang out and continue to grow and develop for the rest of the pregnancy. When it implants — about six to 12 days after conception — it might cause mild cramps that last a day or two.

Implantation Bleeding
Implantation can also cause light spotting. This is a perfectly normal pregnancy symptom and is often thought to be the earliest sign of pregnancy — but many expectant women don’t experience or don’t notice it.

Nausea
Possibly the most notorious pregnancy symptom — morning sickness — has a misleading name. When we’re pregnant, nausea can strike any time of day, usually starting around two to eight weeks after conception and ending around the end of the first trimester. That’s a long time to be feeling queasy, let alone puking our guts out.

Fatigue
Who can blame a mom-to-be for feeling exhausted? Making a tiny human takes a lot of energy! Early in pregnancy, fatigue is likely caused by those hard-at-work hormones. Late in pregnancy, hormones are also a factor; plus a woman is carrying extra weight and may be having trouble sleeping at night.

Heightened Sense of Smell
It’s not certain why some women’s sense of smell gets extra keen during pregnancy, but chances are it’s connected to hormones (just like most other symptoms) and nausea. Suddenly, a coworker’s perfume or a neighbor’s dinner might seem extra stinky.

Food Aversions
Going hand-in-hand with nausea and a ridiculously sensitive sense of smell is food aversions. This is where a woman finds herself disgusted by foods she’s normally fine with — sometimes, even a few of her favorites. Some experts theorize that this is an evolutionary trait that protects the mother and fetus from eating something potentially harmful. Whatever the reason, some moms have food aversions only in the first trimester, and others have repulsions that stick around long after pregnancy.

Cravings
On the flip side, there are pregnancy cravings. Stereotypical ones are ice cream and pickles but women may crave a variety of foods from jalapeños to pineapple to liver and onions. Cravings are par for the pregnancy course, as long as the mom-to-be doesn’t find herself craving things that aren’t food. In that case, it’s a medical condition called pica, and she should tell her doctor right away.

Dizziness
Hormones cause a pregnant woman’s blood vessels to relax, increasing the blood flow to her baby but also reducing blood pressure, which can cause temporary dizziness or a faint feeling.

Runny or Stuffy Nose
Sure, it could be a cold, but sometimes pregnant women get stuffy or runny noses just because they’re pregnant. There’s even a name for the phenomenon: pregnancy rhinitis. Chalk it up to that increased blood volume, which can make the nasal mucus membranes swell.

Frequent Urination
Early in pregnancy, increased blood volume causes the kidneys to process extra fluids, making a woman have to pee more often than usual. Later in pregnancy, the growing baby crowds the bladder, inhibiting its ability to expand, and causing extra trips to the bathroom.

Vaginal Discharge
That thin, milky discharge has a name: leukorrhea. And some women are shocked by how much of it their body produces during pregnancy. Wearing a panty liner or absorbent underwear helps some women feel more comfortable. It’s important to let a doctor know if the discharge is green or yellow or comes with itching or redness; these are signs of infection.

Bloating
Commonly, bloating may be one of the earliest pregnancy symptoms. Just another fun side effect of those newfound pregnancy hormones. This is usually similar to how some of us feel at PMS time.

Backaches
It’s no wonder pregnant woman get backaches: Our center of gravity changes, affecting our posture. Hormones make ligaments and joints more relaxed. And we’re gaining weight by the week! The good news is exercise, stretching, massage, and good posture can help.

Nosebleeds
Nasal passages can get extra dry during pregnancy, and blood vessels are more prone to break, causing some pretty gnarly nosebleeds. We recommend using a humidifier and wiping and blowing gently when stuffed up.

Constipation
Some women’s digestive systems slow down as their pregnancy hormone levels rise. Plus, taking vitamins with iron can cause constipation. Eating fiber-rich foods, drinking lots of water, and getting plenty of exercise can help get things — and keep things — moving.

Hemorrhoids
As if constipation wasn’t bad enough, all that straining on the toilet can cause uncomfortable (and even painful) hemorrhoids. These swollen rectal veins can also be a result of all that pressure the baby-to-be put on mom’s lower half. Clearing up constipation issues can certainly help, as can OTC remedies and a nice sitz bath soak.

Hair Changes
Ever notice how many pregnant women seem to have thicker, more healthy hair? This is one of the few perks of pregnancy! Hair usually sheds gradually but during pregnancy, high levels of estrogen cause hairs to hang on longer, so there are actually more of them at a time. The bad news is, the body will have an adjustment period post-pregnancy, during which many women find their hair falls out a heck of a lot more than usual.

Some women swear their hair texture changes completely during or after pregnancy: straight to wavy, tame to frizzy, or even curly to straight.

Unusual Hair Growth
Chin, back, and even … butt … are just a few of the weird places women have told us they suddenly started growing hair during pregnancy. Blame the hormones!

Excess Sweat
Hormone surges, increased blood flow, and racing metabolism can all make a pregnant woman feel hot. Can anyone blame her body for trying to cool her down with a bunch of dripping sweat?

Visible Veins
Some pregnant women find their veins are so dark, they can see them right through the skin. Those veins are carrying extra blood through the body, so it’s no wonder they get so prominent. At least it’ll be easy for the nurse to find a vein for any blood draws!

Feeling Hot
As we mentioned before (with the sweating), it’s normal to feel hot while pregnant. But it’s important for a pregnant woman to make efforts to stay well hydrated and cool as much as she can (turn on that air conditioner!), since overheating could be harmful to baby early in pregnancy. Later in pregnancy, dehydration could cause preterm labor.

Round Ligament Pain
Some pregnant women are surprised to find all the stretching going on as baby grows can actually hurt. The round ligament, with supports the uterus, does a whole lot of stretching, which can cause discomfort in the abdomen and even in the groin. Ouch.

Leaking Urine
As baby grows and crowds Mom’s belly, she might find herself peeing a little when she coughs or sneezes. We wish we could say this always clears up after pregnancy.

Excess Drool
Here’s an unexpected one! Increased pregnancy hormone levels can also cause an increase in saliva production, making some moms-to-be feel as drooly as the family dog. Some find that it helps (at least temporarily) to chew gum, suck ice, and … um … spit a lot.

Sensitive or Bleeding Gums
Expectant women have extra blood flow everywhere — even their gums — making swollen or bleeding gums common during pregnancy. Women with sensitive gums may want to switch to a soft-bristled toothbrush. And every mom-to-be should stick with regular dental checkups.

Acne
Flashback to the teen years! Hormonal changes can cause a pregnant woman’s skin to break out. Anti-acne medications should be cleared with a pregnant woman’s doctor before use.

Nipple Changes
Whoa! A pregnant woman’s nipples might get bigger and darker. It’s probably due to hormones — and some people believe it’s to make them easier for a newborn to spot for those first breastfeeding sessions.

Pregnancy Brain
Over the years, different studies have “disproven” and “proven” the belief that women become more forgetful during pregnancy. But whether or not science says it’s true, it’s certainly normal to feel more absentminded. From planning for maternity leave, to setting up a nursery, to learning what life will be like with a newborn, expectant mothers certainly have a lot on their minds, making it understandable that they might lose their keys or forget to make a call or two.

Vision Changes
Blurry vision? Fluid changes in the cornea can affect a mom-to-be’s eyesight, in which case her vision will go back to normal after her baby is born. It’s important a pregnant woman’s doctor knows about any vision changes, since some pregnancy complications can affect eyesight as well.

Leaking Breasts
She might not expect it until after pregnancy, but as early as the second trimester, her boobs are creating baby’s first food: colostrum. It’s normal for this nutrient-rich milk to leak a bit before baby’s arrival.

Carpal Tunnel Syndrome
Increased swelling during pregnancy can cause carpal tunnel syndrome — pinching of a nerve in the wrist. This can cause pain, tingling, and numbness in the fingers and hand. It can also make it tough to do everyday tasks, such as buttoning a shirt.

Bigger Feet
Sorry, but bigger feet might not be just due to pregnancy swelling. Around 60 to 70 percent of women’s feet grow permanently during pregnancy, according to one study. Use it as an excuse to buy some cute new shoes.

Headaches
A headache during pregnancy could be a sign of hunger, stress, dehydration, fatigue, or caffeine withdrawal. Check with the doctor before taking anything — rest, food, and water might be all that’s needed to feel better.

Lightheadedness
Pregnant women can feel faint — or can actually faint — for a variety of reasons. These include low blood sugar, anemia, and the pressure her growing uterus puts on her blood vessels. Lightheadedness is considered normal if it’s not accompanied by abdominal pain, bleeding, blurred vision, headaches, or other strange symptoms.

Linea Nigra
Hormones are probably the cause of the dark line that runs vertically down the middle of many pregnant women’s bellies. The linea nigra is Latin for “black line” — it may start out a shade or two darker than the woman’s skin tone and then get gradually darker as pregnancy progresses. It will eventually fade after delivery.

Stretch Marks
Stretch marks are tiny tears under the skin, caused by all that fast stretching happening as a pregnant woman’s belly expands. It may be genetics that decide whether a woman gets stretch marks — but most do! The bad news is they never really go away completely, but they fade quite a bit after pregnancy.

Skin Discoloration
Pregnancy hormones can increase the level of melanin, which gives skin its pigment. And so this might cause dark skin patches called melasma, aka the mask of pregnancy. Keeping skin protected from the sun may help prevent melasma.

Weight Gain
Obviously, pregnant women should gain weight! A woman’s doctor will advise her on the ideal amount of weight for her to gain — it may be somewhere between 11 and 40 total pounds, depending on her BMI (body mass index) — and will keep tabs throughout the pregnancy. Gaining weight at a healthy rate helps mom and baby stay healthy, and abnormal weight gain could be a sign of a pregnancy complication.

Heartburn
Those darn pregnancy hormones relax a bunch of different body parts, including the valve meant to stop stomach acid from creeping up the esophagus. The result, of course, is uncomfortable heartburn. Avoiding greasy and spicy foods may help prevent bouts.

Braxton-Hicks Contractions
Call it a warm-up for the big game. Braxton-Hicks contractions aren’t the same as labor contractions. They’re tightening of the uterus that’s irregular and infrequent; they can be so subtle a woman might not even notice she’s having them. Drinking lots of water, getting enough rest, and changing positions can help prevent or relieve uncomfortable Braxton-Hicks.

PUPPP
PUPPP (pruritic urticarial papules and plaques of pregnancy) is a rash of itchy, small red bumps that can appear on the belly and may spread to other parts of the body. Usually it goes away after the baby’s born.

Spider Veins
Spider veins — visible red blood vessels — may appear because of hormonal changes and the high amount of blood pumping through a woman’s body during pregnancy. Little blood traffic jams, spider veins are considered harmless, though sometimes they’re uncomfortable. Getting enough exercise and putting up her feet to promote circulation may help get traffic moving again.

Varicose Veins
Not to be confused with spider veins, varicose veins are swollen, sore, and blue. They happen on the lower half of a pregnant woman’s body — usually legs and sometimes vulva, vagina, and rectum (as in hemorrhoids, sorry) — because of all the pressure the uterus puts on the veins down there.

Nail Changes
Some women report their fingernails or toenails grow faster, get stronger, or get more brittle during pregnancy. It just goes to show how unpredictable pregnancy truly is!

Swollen Ankles
Women retain more fluid during pregnancy. That, combined with the extra blood flow, can cause ankles to swell. Minor swelling is considered just another side effect of pregnancy, but if it’s sudden or severe, it could be a sign of preeclampsia, a dangerous complication.

Excess Gas
Pregnant women shouldn’t be surprised if they get a little more gassy than usual, since digestion can slow, and hormones can relax the muscles that would normally stop it from releasing. In other words, moms-to-be get a pass to fart in public.

Snoring
In the third trimester, the trifecta of weight gain, swelling, and nasal congestion can cause a woman to begin snoring in her sleep. It’s probably just a pregnancy thing that will go away after delivery, but snoring could cause a few other problems, so it’s important anyone sawing logs notifies the doctor.

Hip Pain
The human body is an amazing thing! Hormones naturally relax and soften hip joints and ligaments to prep for baby’s delivery. But that amazing change can open up the possibility of hip discomfort, especially now that the mom-to-be’s uterus is heavier and her posture has changed.