Why do women experience nausea during pregnancy?

No one knows for sure, but changes in your body, particularly the surge of pregnancy hormones, a heightened sense of smell, and a temporarily more sensitive digestive system likely play a role.
How long does it last?

Nausea usually starts by the fifth or sixth week of pregnancy and may be the worst towards the beginning of the third month. Symptoms usually disappear around the start of the second trimester, but in 15 to 20 percent of women, they may last longer.
Luckily, these sensations can usually be managed without a visit to your provider or prescription drugs. Here are some helpful home remedies from One Medical providers to get you through morning sickness.

1. Eat smaller, more frequent meals.

Not eating can make nausea worse. To avoid having an empty stomach, try smaller, more frequent meals instead of three large meals each day. To mitigate nausea in the morning, try placing some plain crackers, dry bread, or cereal next to your bed so you can eat a small amount as soon as you wake up.

2. Soothe your stomach with ginger.

Research suggests that ginger may help settle an upset stomach. Try ginger tea, ginger chews, ginger preserves, or ginger ale made with real ginger. Taking capsules containing 250 mg of ginger four times a day can also help.

3. Skip certain foods.

Try to steer clear of fatty and greasy foods, very sweet foods, spicy foods, and gas-producing foods. This is not the time to try out that new Indian restaurant! Women have reported that high protein, carbohydrate-heavy, salty, low-fat, bland, and/or dry foods (i.e. nuts, crackers, toast, and cereal) are less likely to cause nausea. You can also combat nausea at meals by keeping foods and beverages separate (avoid drinking beverages while you’re eating).

4. Avoid strong smells.

One of the best things you can do is avoid environmental triggers, especially strong smells. Keep your distance from cigarette smoke, perfumes, and anything else that seems to affect you. When it comes to cooking, see if someone else can do the food preparation. If you do cook, open the windows to minimize cooking odors.

5. Try aromatherapy.

On the flipside, smelling mint, lemon, or orange may help alleviate nausea. Try placing a cotton ball or tissue infused with scented oil under your nose. (Many prefer the cotton ball approach to spraying an aroma into the air because you can quickly discard the cotton — and its smell — if it does nauseate you.)

6. Time your prenatal vitamins right.

The iron found in many prenatal vitamins can exacerbate nausea. Try taking your prenatal vitamins before bedtime, instead of in the morning on an empty stomach. If that doesn’t help, talk to your provider about trying a prenatal vitamin without iron. Your need for iron is greater later in pregnancy so it may be okay to skip the iron as you get through this hump, but make sure to tell your provider so he or she can keep an eye on your iron levels.

7. Go alternative.

Many women report help from sea-band wristbands, sold to treat motion sickness in many drugstores, and which aim to decrease nausea by pressing against an acupressure point on your inner wrist. Although it’s unclear whether this is the result of the wristband or a placebo effect, this economical option may still be well-worth exploring. Some women have also found relief from acupuncture, and studies have found that hypnosis may lessen symptoms of nausea.

8. Get on your feet.

Some women find that exercise helps their symptoms. Try taking an extra walk during the day, going for a swim, or joining a prenatal yoga class. Keep in mind: exercise is strongly encouraged during pregnancy, but always consult with your provider before embarking on a new exercise routine—or dramatically increasing your fitness level.