HELP!!

Ok guys I’m starting to freak out a bit now , this might sound a bit stupid but bare with me really just need people’s opinions.

Ok so I have the contraceptive bar ( a few months now ) and I’m on the pill too ( to regulate my period) and I just finished my second box on Sunday and it’s now Thursday and I still haven’t got my period !!!! I have had unprotected sex but I’m on the pill and the bar so surely there’s no way I’m pregnant? Is it possible that I’m not going to get my period ? Please help I’m really afraid as getting pregnant is not an option for me.