I took plan b while i was still on my period but the last day of my period. i ended up having to take another plan b but that was within a few days after my period.. and then i ended up having to take another one AGAIN the next day. i took 3 plan b’s in total. 2 within the same week& 1 the week before taking 2. after taking it, the next week i bleed for 3 days and then stopped, it was like light. it was like dried red , sometimes normal and brown .. and it was light. the week after i bleed again but for 3 days again and stopped... i’ve done 2 pregnancy tests and they all came negative atleast. should i be worried?