Why does my mom think I'm pregnant?

so my mom has never trusted me. and two days ago was my birthday. im finally 18!! woo hoo right??? no...
my mom thinks im pregnant!! and I dont know how I can tell her im not.
see the thing is, im a virgin. and everybody knows that! some people that I dont know think im not. even a few teachers at my school!
I mean... grrr! do I look like a slut!?!?!
even my own mom doesnt believe me!
I've never been to a twat doc. dont see why I should when I've never had sex.
I do want to be put on birth control. just in case.
but I dont know how to talk to my mom about it.
because I know she will think im doing it for sex. when really im not. I just want to be safe.
theres this one guy I really like and hang out with almost every week. hes my best friend. and im thinking that my mom thinks I've had sex with him because hes all I ever hang out with.
I dont understand my mom!
if anyone can help me... like... some advice... that would be more then helpful!!!

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I doubt if your Mom is crazy - what reason does she have to doubt you - what reason do other people and teachers have to think you're not a virgin - doesn't add up when it's at least 3 or more that tell a different story - makes your 'angel' story hard to swallow - ask them for their reasons/proof, then you'll know - your question: ONLY your Mom knows why...Good luck !!

Just tell your mom. It may be ackward, but do you really want her to think your pregnant?!! If a lot of people know your a virgin then you have people to back up your story if sge doesnt believe you

Well tell you mother and if she does not believe you then there is nothing that you can do about it know point getting mad though you know the truth and that is what counts any way and if you know the truth then it shouldn't matter if she does not believe you because you have nothing to hide. AS for the hole birth control thing well to be honest you can get it free and with out her any way it might be easier to do it that way too.

I am sorry aboput how she is though I know what that is like .

well best of luck to you,

woah ..did you say your a virgin but later on say you had sex..well I don't know moms are always concerned trust me I know but guess what...your 18!! legal age