Will forcing a pregnant woman to poop cause fetal arrest? There’s a clear answer to whether a pregnant woman who poops hard will cause fetal arrest: yes, but the probability is very small. During pregnancy, the reproductive organs, urethra and rectum of pregnant women are compressed by the gradual increase in the size of the uterus after pregnancy, and the levels of hormones in the blood of pregnant women change, which may also lead to constipation. If pregnant women are using it