What do you guys think?

Im 26 years old. Married (July 19th was our 1 year wedding anniversary! )

We have been ttc since april. I have been diagnosed with pcos and was on a variety of different drugs/hormons/crap. I went off of everything in november 2014. I had a period in november started around the 12th. It lasted about 11 days (oh i should mention i am incredibly irregular!) I only just had my next period this june (june 12-23).

i have been trying to track my ovulation since june but no luck.

I have been very nauseous the past 2 weeks, indigestion/constipation / cranky/ tired/ sore legs & back and ive gained some weight...

I have also taken 3 pregnancy tests since july 1st. (Im parinoid ill be one of those women who give birth in a toilet because she didnt know she was preggo!)

I have a doctors appointment for tomorrow but im just curious if anyone has any opinions/insight to whats going on? Im most likely not preggo. But im worried there might be something else going on...

Tia!