Not sure.

I've been trying to get pregnant over a year, got diagnosed with pcos about 2.5 months ago. I have a 3 month check in with my doctor about the metformin she put me on, it's given me more regulated periods which is awesome. But I still think I'm not ovulating. I am 3 days away from my period ( or what it should be) yet have no signs I normally have. I usually have sore boobs 7-8 days before and until it comes, and this time NOTHING, I also have had some sharp cramps, but my stomach area (I'm a pretty big girl) just feels so heavy and achy which isn't a sign for me usually, but because I don't have sore boobs, im worried the metformin isn't working and that my period is going to be MIA again in 3 days. I took a premom /easy @ home test yesterday and it was negative, so I'm not sure if my period is coming or if my body is going to go back to wacky periods. Sorry for the long post I just needed to vent.