Is Heavier Bleeding After Intercourse Normal?

I had my periods on 5apr.me &my bf had sex on 19apr. I took ipill d very next day.so i had vaginal bleeding 4m 25-28apr.nw i m hvng periods 4m 7may.d flow is heavier than i used to have.is everything normal?will my periods be d same way or will it be normal?