Recently i also hv irregular period. My problem is i got vaginary infection last month i think is caused of intercourse??? sometime got a little blood, if not is brownish or yellowish, 1st it's also smelly like man sperm. Then i wento clinic & a cream 2 apply then it cure after 1 week & period was coming. Then around 2 weeks later i took contraceptive pills, which the 1 take after intercouse, then not more than a week period was coming, i mean not more than 2 weeks time after the period end last time. now just finished. 1st i thought no more problems, cuz mayb i took contraceptive pills so it came again within a week, but after this period finished, still got some yellowish & a bit brownish, feel not comfortable then again yesterday i applied cream. I think i got infection again!!! Hope it'll end very soon.