*Warning*
If you’re immature, you may be embarrassed and uncomfortable by this.
The hormone in question is called prostoglandin. It’s in semen. Anyone who’s either been pregnant or had a girlfriend/wife who was pregnant should know that after a certain point of the pregnancy, you’re not supposed to have sex because prostoglandin can trigger uterine contractions. On the other hand, if you’re four days overdue and sick of being pregnant … put out.
