i had protected sex with my boy friend 2 months ago and had 2 periods since then. negative hpt. i am now 9 days late. help please
If you haven't had sex for two months and have been regular since, it's likely your body just adjusting to some unknown force. Periods can be delayed for all sorts of reasons beyond pregnancy; some are serious, some aren't. A common reason is simply stress.
Wait a few more days, and if your period still doesn't come, make an appointment with your gynecologist. They'll be able to determine whether there's a hormonal problem, or some other roadblock stopping your period.