Im scared! extent gone wrong!?!?!?!?!!?!??...

'm 13 and i got my first extent january 5th. then i get my next one feb. 8th, and in a minute it is march 14th and i still haven't gotten it... . i've be getting bad stomach ache and cramps lately too.
idk what's wrong... and the pregnancy test come to negative. does it still nouns like i'm pregnant or is it lately a missed period? i'm youthful and it's only supposed to be my third one...
i DIDN'T enjoy sex. a little of my boyfriends pre-ejaculation get on my hand and i started to rub myself beside that hands, but not inside... oh, and my boobs are getting bigger and i enjoy gas

WHAT IS IT? HELP ME PLEASE!!!
Answers:

Girls Only Please!?

you sound fine...when you first start your period they are never regular...its not that you missed it..but that your body is still trying to deal near all the hormones related to getting your length. If the pregnancy test come out negative after you shouldnt be pregnant. Getting gas and cramps are a sign that your period is going to be coming soon so a short time ago wait it out. The stress that you are have over this may be causing the adjournment also. You just necessitate to calm down for immediately. Your body is still trying to regulate itself. I'm not going to lecture you on sanctuary but now that you hold started your period you stipulation to be more careful beside your boyfriend. You are still very childlike and you don't need any little rascal running around just however.

Do Girls masturbate?

its alright to have irregular period now, i also go through that when i was a short time ago having time of year for the first time. there could be some cramps since and thats pretty normal. but of late be careful just about your relationship life motive you are still young.