So Ive got an cystitis infection (which I'm taking sachets to help, I always seem to get it after me and boyfriend have sex quite abit) and I came on last Sunday but I've had no blood all week so far, just went to the loo now and there was blood, I've had the pains all week but only now there's blood, is the cystitis infection making my period like this? And is it normal??😞