Okay I recently lost my virginity not too long ago. I used protection and everything but I know that condoms only work 89% of the time. Lately I've been Moody, nauseous, irritable, and eating like crazy and it's around the time I'm suppose to get my period but it hasn't come yet. I still didn't tell my mom that I'm not a virgin because she will kill me! I thought about going to my older sister and asking her to do it with me but I'm still scared. My mom honestly doesn't even trust me because I'm more of a tell it to your face person and she doesn't like the truth. What should I do?