NAUSEA, STOMACH HURT AT NIGHT, SLEEPLESS NIGHTS... I DON'T K

I know my period isn't that late.... last month it started on the 18th which was yesterday, but my period hasn't come yet for this month. usually it comes on the same day or a little before every month. For the last four days i've been having lower stomach pain, nausea, loss of appetite. I can't really say that i'm a virgin. But we didn't really have sex yet. You can say I'm kind of in between because we did try, but we stopped so his private went in a little, but only for a brief second with no protection.... And that was last week. I kept waking up for the past four days at very early random times. One time at 4 AM, then 5 AM, then 3 AM, and last night 2 AM. Last night my lower stomach kept hurting very badly, but i don't know why. I did eat last night, but not much because I felt nausea a little and was scared. The 3 nights before last night had very terrible nightmares along with the stomach pain. I don't know who to talk to, my boyfriend knows, but he doesn't really know what to do... I'm 18.... I keep askin myself if I should tell my mom or not, but I don't really want her to worry and I'm scared of what she will say cuz she has been warning me about being too close to my boyfriend.... someone please help me...?

I think you are just stressing yourself out. Stress can delay a cycle, and definitely make you feel sick to your stomach and not want to eat. It can also cause restless sleep.

It is very very VERY unlikely that you are pregnant. You are at the end of your cycle. Women are most fertile around ovulation (day 14), not day 27 or whatever you were at. He didn't ejaculate inside you, and two seconds of penetration doesn't give much time for pre cum either.

I personally have stressed myself into feeling sick and tired, as well as making myself think I had pregnancy symptoms when, of course, I wasn't. Just relax.

If you plan on starting a sex life with your partner, I suggest birth control pills. You can get them at Planned Parenthood, so you wouldn't even have to talk to your mom about it if you didn't want to. If you are prone to stress (as I am), they definitely ease your mind.

I have been on the pill for five years and take it at the same time every day, but lately I've been feeling very nauseous-- especially at night. I get so sick that I don't want to eat anything, and I've been so tired. I usually feel fine during the day. I just had what I think was my period, but I know that girls who get pregnant on the pill usually have several bleeding episodes during the time they would normally have their period. Should I be worried?