Unbelievable! No.. way.. possible..

WHATS THIS?! How could this be...

I've tested a few weeks before.. Even went to the doctor and they told me I was negative!! The doc was just a few days ago.. yesterday I tested positive for ovulation so I baby danced. And today I just wanted to take a pregnancy test because yes I'm an addict.. I mean I know I haven't had a period for 2 months but I only thought it was because I'm irregular... So I smoked and drinked and something else (not saying) without knowing I was pregnant! Because of stupid tests says I'm not pregnant. . Damn it.. I hope I don't miscarry again :((

Really stress out about this but I'm trying not to. I don't want to miscarry for the 4th time :( I really want this to be a Christmas present but I'm sooo scared of the outcome. What to do? Could this be a false??? I've spent all my money on the other tests N this one :/