Possibly pregnant?!

Started this app in the beginning of November. I have been irregular since I got off my period June 2014. My period has been about 5-6 weeks apart. I had a period starting 10/31/15. Then got another lighter period 3 weeks later. Took a pregnancy test 1 weeks ago and it was negative. Today I am experiencing some cramping and bloating. Doesn't deel like it'd be relate so af tho. I don't think glow knows my body yet to know exactly when I'm ovulating. Could it be implantation?! Could this be a possible pregnancy?! Don't wanna get my hopes up... Eeeeek! Lol