Pei Zhengxue Health Weibo, Volume 3

March 21, 2014

Chapter 273

### 6. Happy Little Woman: Does a delayed period affect fetal size? At 20 weeks of pregnancy, the doctor said during a recent 4D ultrasound that the fetus is too small and needs oxygen supplementation?

From Pei Zhengxue Health Weibo, Volume 3 · Read time 1 min · Updated March 22, 2026

Keywords专著资料, 全文在线浏览, 随笔资料, 7. 药流后出血问题

Section Index

  1. 6. Happy Little Woman: Does a delayed period affect fetal size? At 20 weeks of pregnancy, the doctor said during a recent 4D ultrasound that the fetus is too small and needs oxygen supplementation?
  2. March 21, 2014

6. Happy Little Woman: Does a delayed period affect fetal size? At 20 weeks of pregnancy, the doctor said during a recent 4D ultrasound that the fetus is too small and needs oxygen supplementation?

Answer: A few days' advance or delay in menstruation is normal if there are no other symptoms; it does not affect pregnancy, let alone fetal development. A small fetus is not an indication for oxygen therapy.


March 21, 2014

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