I don't know what to do!!! I think I am pregnant?!?!?

About I am gonna say for the last week almost every other day I give my boyfriend a hand job. I prob hold his hand after the hand job and then henusualy fingers me. Lately starting like 3 days ago I have been feeling sick in the stomache and yesterday my started to kill me I can't even lay on them. I don't know if this has anything to do with it but when I pee I don't pee lke alot but it's not like I am going all the time. I am 14 and I really don't feel like telling my mom. My peiod is due on the 8th but Its prob gonna come late from the stree. Someone please help and only serious ansers plz!!!!!