Period late after plan B

Okay so my bf and I were trying to have sex and however it wasn’t working out so we continued to hook up. He took the condom off and was still on top of me and I’m not sure if his penis came near my vagina but since we were scared that it did I took plan b 3 weeks ago. My glow app says I was ovulating when we tried.He didn’t come but precum May be a factor. A week after plan b I had extremely bad pains in my left ovary and I was spotting for 10 days with that pain. Now I feel okay but my period is 8 days late. Help!!