I have done unprotected sex with my girlfriend on 2nd of sept. But she took unwanted 72 in 24 hr and again we had sex on 28 but this time we use protection but for safety i gave her unwanted 72
Now she did get her period
After missed her period she checked home
pregnancy test that was negative
Her period came on end of month between 20 to 30
But she didn't get that
Please tell me causes why this happens
When she have her period back