plan b- a week late 😫

Ok ladies I need some insight. So on January 7th the condom broke and I took plan b. I didn't ovulate till about 2-3 weeks later which was the day before my expected period. Now I am a week late. I took an at home test the day I was supposed to start it was negative and then again yesterday also negative. Just wondering if anyone else has had a similar experience and how it turned out or any advice. I'm trying not to freak out.Â