Hi I'm Not Sure Weather I'm Pregnant Or Not, I

Hi I'm not sure weather I'm pregnant or not, I have two children and not long had an abortion in August, and I came on period I say a month now it was only for short time and not that heavy, also I been get really bad stomach pains and bloating and very emotional been breaking down most days boobs feel heavy some does vainy also but done pregnancy test keep coming up negative just wanted to see if you got any advice for me thanks