

Medically Reviewed By Margaret Etudo. Written By The Vitamins For Woman Team.
It’s easy to feel unsure when your pregnancy looks different than expected. Here’s what women shared, what the science says, and how to support yourself through this uncertain stretch.
Five weeks pregnant and not a hint of nausea. No morning sickness, no food aversions, not even the famous fatigue. If you’ve been through pregnancy before and remember being miserably queasy early on, this sudden quiet can feel… alarming.
You might find yourself scouring forums, asking “When does morning sickness start?” or “Is it bad that I feel totally fine?”
You’re not alone. Many women notice vast differences between pregnancies—even those with the same mother and similar timelines. It’s both common and confusing.
One mom shared that by 5 weeks into her third pregnancy, she had no real symptoms and was left wondering if everything was progressing normally. Her previous two pregnancies had her hugging the toilet early, so the contrast made her anxious. If that sounds familiar, this post is for you.
Let’s talk about timing. Most people associate morning sickness with the early first trimester, but the exact week it starts can vary quite a bit.
According to a comprehensive Cochrane review on nausea and vomiting in pregnancy, symptoms typically begin between weeks 5 and 6, peak around week 9, and start to ease up by week 12 to 14 (Matthews et al., 2015). However, that window isn’t fixed for everyone.
Some women notice queasiness as early as week 4, especially those with heightened hormone sensitivity. Others breeze through the first trimester with only mild nausea—or none at all. This range is considered normal, though understandably nerve-wracking.
Interestingly, the intensity of symptoms doesn’t always indicate a healthier or riskier pregnancy. A National Institutes of Health paper clarified that while hormone fluctuations play a major role, individual differences in metabolism, gut sensitivity, and stress response all influence how strongly symptoms show up (Niebyl, 2010).
A surprising number of women report very different experiences between pregnancies. One woman might have a hard first trimester with her first child, and an almost symptom-free one with her second—or the reverse.
Hormonal shifts are partly to blame, but supplementation (like progesterone support), fetal sex, and maternal age can all influence how the body reacts. One contributor to the conversation noted that her nausea was mild until she was prescribed progesterone, at which point it intensified around week 10.
Another woman shared that her nausea began at just 4 weeks in one pregnancy, but started much later in another. Though there’s no confirmed scientific link between fetal sex and nausea severity, some women do feel major differences that correlate with carrying a boy vs. a girl (Gadsby et al., 1993).
So if your current pregnancy feels different from the last one—you’re not imagining it. It likely is different, and that’s okay.
If you’re not experiencing morning sickness yet, you don’t need to force it or panic. But it’s natural to want to support your body during this sensitive time—especially if you’re waiting to see how things unfold.
Here are two gentle options that many women find helpful:
As always, talk with your healthcare provider before starting any new supplement, especially during pregnancy.
Some women get hit early, others not at all. Some need ginger tea by week 5, while others coast until week 9 before symptoms show up. The key takeaway? There’s a wide range of “normal,” and no single timeline fits everyone.
Looking for a gentle supplement to keep on hand? Vitamin B6 or a well-formulated prenatal might be a smart addition to your toolkit. And if symptoms stay mild—count that as a win.
You’re doing great, mama.
Jewell, D., & Young, G. (2003). Interventions for nausea and vomiting in early pregnancy. Cochrane Database of Systematic Reviews, (4). https://doi.org/10.1002/14651858.CD000145
Niebyl, J. R. (2010). Nausea and vomiting in pregnancy. Obstetrics and Gynecology, 115(1), 1–8. https://pmc.ncbi.nlm.nih.gov/articles/PMC3676933/
Gadsby, R., Barnie-Adshead, A. M., & Jagger, C. (1993). A prospective study of nausea and vomiting during pregnancy. British Journal of General Practice, 43(371), 245–248. https://www.academia.edu/download/35254416/Vomiting-in-Pregnancy.pdf
medically reviewed by margaret etudo, BPharm. written by the vitamins for woman team.