I need help please! My last period was on October 25 lasted for about 5 days which is my average. On Dec. 22 i had sex with my boyfriend but we used a condom. i noticed i my period had been due so about a week or two after my missed date i took a home pregnancy test both came out neative. then a couple weeks later i told my boyfriend about the situation and he wanted to take another test so i did and once again both came out negative. Now its Jan. 1 and still no period! I've been stressing about this situation and i've noticed i've been breaking out a lot more which usually happens around my period but other than that nothing much is really different. this is not the first time my period is off but this is the longest i've gone without it. what should i do? Im 17 and i cant really reach out for help to my parents, im not on birth control and i dont know how to get on it without having my parents think completly wrong. so help me please!