Hi, my girlfriend hasn't gotten her periods. She usually gets it by 20th of every month, last month also it was supposed to happen on 20th but got delayed and happened on 25th. We had unprotected sex where I did not ejaculate inside her. It's already 25th and she hasn't gotten her periods, please help, we are worried.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.