Took a plan b and paranoid

Okay so my last period end on the 21 and I had sex on the 22 on nov my bf thinks he might have slipped up but he’s not really sure so I took a plan b the 23 just in case. A week later I started getting cramps and back aches and I had light bleeding for 5 days (which ik is normal) and I believe I started ovulating around the 9th because I had a lot of white discharge. Also, I was having period symptoms and I usually get that before I start my period but I’m over here freaking out because 2 days late which isn’t tooo bad I just wish I knew when I was gonna come on my period