Please help, bad anxiety

So me and my boyfriend had sex jan 14th, we used protection but when we were done there was stuff under me and I didn’t know if it was mine or not, so I took plan B within the same hour.

I took plan b before I started ovulation, had a weird day of or so of bleeding (took to google) and now I’m 5 days late.

I just want to know if this is because of the plan B

Also, the condom didn’t break, we checked and double checked but I took the pill just to be safe.

Edit; today I found clear slimy discharge with white chunks in it and have been crying since because I really don’t want kids for I am still just a baby 🙁