Pelvic pain and breast tenderness.

My girlfriend and i had protective sex a week and a half ago and she is expecting her periods this week starting from the 25th... while ejaculating i had taken my penis out and then i came inside the condom itself and carefully removed it away from her and we did not get cum on her body... she is having tender breasts since almost two weeks(even a few days before we had protected intercourse) and today there is a sharp pain in her pelvic area... her cycle is very irregular and comes in about 45-50 days... she should be getting her perods from the 25th ideally so i thought this would be pms but she says that it doesn't feel like pms pain and it's different... she is getting stressed by this... please give any helpful advice