My partner and I do contact. After that I experience all signs of pregnancy.. but during the first month I bleed for 2 days... the following month it happen again... is it possible that I am pregnant?

It is possible... have you tried a pregnancy test? If the bleeding is not how your normal periods are, try a pregnancy test. Are you using any form of birth control to try and prevent pregnancy?

I've tried pregnancy test 2 times but it always negative... I don't use any birth control... today I had my period again but its heavy now?I don't know if I'm preggy or not I'm being paranoid...

If you have your period, and you've had 2 negative pregnancy tests, then it's unlikely that you are pregnant. Unlikely isn't a flat out no though. Some women do bleed throughout their pregnancy mistaking it for a period.

If you're really concerned then it's best to talk to your doctor, get a blood test, and find out once and for all if you're pregnant or not.

Are you trying to conceive? If not, then I hope you realize that not using birth control will make pregnancy inevitable sooner or later.

If I'm not preggy why my abdomen got big and I touch a round object inside mine... and now every time I got my period the first day was heavy the following day it became lighter.. it opposite to my regular period...

Since you have a few changes that are not normal for you, best to see your doctor for an exam.