Plan b pill

Hi ladies okay so I took the plan b pill on the 17th of June which I had unprotected sex. My period is suppose to start in 14 days and today I just found out that I am ouvlating & I had unprotected sex again today like 15 mins ago. Should I take another plan b or no? It feels like my period is about to start I just feel so dumb to keep having unprotected sex. I need you ladies help P.S. He did pull out but i know you still have pre cum.