What causes nusea after periods or having sex?

Nausea: There are probably a # of possible reasons for nausea associated w sexual intercourse. Some women report nausea w deeper penile penetration ;/or rough sex. In this situation there may be pain which could trigger nausea. Indigestion ; acid reflux might be causative. Prostaglandins could play a role. In some situations – nausea or vomiting could be psychological in nature if some aspect of >.