i need help like 🆘🆘🆘🆘

so i posted earlier because i had discharge and i was told it was a possible infection but now im bleeding.

i have been scared recently because i thought i was possibly pregnant. i had my period and then i had sex twice with my boyfriend afterwards. that was 3 and a half weeks ago because i started bleeding two weeks after me and him got intimate. i was bleeding until recently. it stopped three days ago. and now it’s happening all over again. keep in mind im also on the pill. ive been on the pill for 3 years. this has never ever happened to me before so you can understand why im freaking out. any ideas?