Any worries?

Mattie
A week ago my boyfriend and I had unprotected sex. He did pull out. It was my third week of birth control ever and I did take plan b to be safe. Today we've had sex a few times and we started without a condom but then put one on when we decided to go till he finished. Do I need to worry about anything? I take my birth control religiously. And I'm now starting my week without pills. No period yet though.