plan b ! pls help

ok soo dec 2nd i was fooling around with my bf, while we were doing it, the condom had came off inside of me, and he always pulls out when he’s about to cum, he pulls out and we were both confused as to where the condom went.. it was inside of me, we don’t know if there was any cum inside of it, he says that he pulled out and it was on my butt, and then he pulled the condom out, I was scared so i took a plan b 30 min after the incident happened, i was also not ovulating, this whole incident happened after ovulation. I’m scared the plan b won’t work, i’ve been getting my normal pms symptoms this whole week, (for a week straight) i’m supposed to be getting my period, ive been really gassy and bloated, and tired, and getting cramps and hella acne. I also heard that taking vitamin c in a high dosage helps induce your period so i’ve been taking like 2,000 mg this whole week so i really really hope i get my period.. do you guys think i’m fine or has this ever happened to you ?? i also have been getting discharge, i usually get white/ watery discharge before my period. Pls help!!!