Are you having trouble taking the next day's pill straight away?

Hello, my sex life with my boyfriend is very active only he does not use a condom and I have to take the morning after pill straight, within 8 days I got to take 2, my menstruation is going crazy I think because of this and these days I had a bleeding, I thought it was menstruation and I took an injectable contraceptive only the other day did not come anymore, does it have the same effect? or do I have to take another when she really comes? Are you having trouble taking the next day's pill straight away? What do I do to regularize my period?