 [ Symptoms ] i had unprotect sex my period was 11 days late i had some light bleeding that lasted day could i still be pregnant  he pulled out but he pre came in side me and he did not pull out on time [ Disease ] hi at a young age if you do not get periods for 6 months then its definitely something to be concerned about irregularity in periods occur due to hormonal changes stress anxiety etc brown discharge may be a result of these conditions too you should get a routine blood check up ultrasound of abdomen done and consult a gynecologist thanks