Should i be worried?

Today would’ve been the first day I started my period, i didn’t though. Which doesn’t worry me because my period usually comes on Tuesday’s the second day of taking my period pill.

Well, me and my boyfriend had sex today since i’m about to leave. He said he isn’t too sure if he came inside of me or pulled out at the right time. I don’t think i felt anything but i’m not too sure if i should worry, please help:(

What should I do, I thought about getting the morning after pill but I also don’t want to mess anything up if he didn’t cum in me.