someone please tell me what’s going on with my body❓

my boyfriend & i had sex for the first time a month ago. we used condoms & he still pulled out, but there was a a moment after he came & took off the condom to put on another that his member touched the outside of the new condom. i was also ovulating.

knowing that anything is possible, i started to panic. i took about 7 of my low dose bcp & ended up taking a plan b within 72 hours after. i took two pregnancy tests that were negative and my period was only late a day & a half. after i got my period it started as really dark brown discharge & then close to 4 days of HEAVY flow.

this app says that i finished ovulating 3 days ago, but i started spotting today. it’s in my discharge & not very dark, but pretty thin & stringy.

i know i put my body through a lot a couple weeks ago with all the artificial hormones & stress levels, but this hasn’t happened to me before.

what’s going on with my cycle?