I recently turned 17 and my period was due to come on oct. 14th, it is now 23 days late. I have a very irregular period, varying from being very close together to missing two or three. I am not on birth control and the last time of intercourse was Arpril 25th 2008. My period was late then and i came very close to having intercourse twice over the summer, didnt and my period came somewhat on time between 5 and 17 days late, the last time that i got it being september 16th. I took two home pregnancy test the latest being this past monday morning since i heard the best time was to take it is when you first wake up and it was negative as was the one before it about a week ago. I am unsure of what to do and ive had to use the bathroom more often, ive had unusual feelings in my lower abdomen and i seem to have been gaining some weight. I am thinking about going to a clinic to get checked out but i would first have to tell my mother. I am unsure of what to do. please help. sorry im not 18.