Can I be pregnant?!

Me and ny boyfriend almost had sex he put the tip in but didn’t go further I stopped him before any thing else could happened i had changed mind he didn’t cum but I was thinking about Precum , to be cautious I drank a plan b the next day but that same day I took the plan b I was going to ovulate the eve calendar had said. The month I did this I still got my period but it was a light flow and that’s what kinda got me paranoid , today marks month that all this happened you think I can be pregnant ? My period comes in 9 days but I just want to know what you guys think