Will my morning sickness be different for my next pregnancy?

Morning sickness does not follow a predictable pattern from one pregnancy to the next, and research suggests that's because each pregnancy has its own hormonal profile.† Some women find their second pregnancy easier, some find it worse, and there is no reliable rule that applies to everyone.

Why severity isn't consistent pregnancy to pregnancy

According to the NIH's National Institute of Child Health and Human Development, nausea and vomiting affect up to 80 percent of pregnancies, but the underlying research doesn't establish birth order as a predictor of severity. What has emerged more recently is a mechanistic explanation for why severity varies at all.

A 2023 study published in Nature found that sensitivity to the placental hormone GDF15, not just how much of it a given pregnancy produces, is a major driver of how sick a woman feels. According to a related University of Cambridge summary of the research, women with naturally low GDF15 exposure before pregnancy tend to be more sensitive to the hormone's rise, while women with consistently higher baseline exposure, such as those with certain chronic conditions that elevate GDF15, report much milder symptoms. Because each pregnancy involves its own combination of fetal GDF15 production and maternal sensitivity, there's no guarantee that what happened the first time will repeat.

What tends to be different, practically speaking

Beyond the biology, several practical factors shift the experience of morning sickness the second time around: you already recognize the symptoms early, you know which remedies helped or didn't last time, and you're often managing nausea while caring for an older child, which leaves fewer opportunities to rest when you need it. None of this means the biological severity is worse, but the day-to-day experience can feel harder even when the symptoms themselves are milder.

"Feeling listened to… pain being taken seriously."

— Dr. Tosin Odunsi, MD, MPH, FACOG, Obstetrics and Gynecology Physician

What to do differently this time

Since you can't predict which direction this pregnancy will go, it's worth starting your routine early rather than waiting to see how bad it gets. Total Prenatal, designed for preconception through breastfeeding, includes ScentCert technology to reduce scent-triggered nausea and gentle iron bisglycinate chelate.† Keep Nausea Sweets, available in peppermint, ginger mango, and ginger raspberry, on hand wherever you're likely to need it this time, whether that's the car, your bag, or a kitchen drawer within reach of a toddler.†

For the full picture on why morning sickness happens at all, see why morning sickness happens and what actually helps.

Always consult your healthcare provider before starting any new supplement, especially during pregnancy.

Frequently asked questions

Is morning sickness usually worse with a second pregnancy?

No. Research doesn't support a predictable pattern by birth order. Some women find it worse, some find it milder, and severity depends more on that specific pregnancy's hormonal profile than on how many pregnancies came before it.

Why do I feel like my morning sickness came on stronger this time?

Sensitivity to the placental hormone GDF15 varies from pregnancy to pregnancy, which may explain differences in severity. It's also possible that caring for an older child while nauseous simply makes the experience feel more intense, even if the underlying symptoms are similar.

Does having no morning sickness last time mean I won't have it this time?

Not necessarily. Each pregnancy has its own combination of fetal hormone production and your body's sensitivity to it, so past pregnancies aren't a reliable predictor.

Should I start my prenatal routine earlier for a second pregnancy?

Starting early is a reasonable approach regardless of pregnancy number, since prenatal vitamin use before conception is associated with reduced severity of nausea and vomiting once pregnancy begins.

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition. Keep out of reach of children.