Trying for a baby but got PCOS

Lisa

Hello I got told I had PCOS at 15 now 27 I have had 2 miscarriage both at 5 weeks, I don’t really have periods I can go months even years without having one, back in 2016 doctor put me on metformin 500mg x 3 a day I got very bad stomach cramps and always on the loo so I come off, last year in Dec I had a period my one before I am thinking it’s Feb time but weird as it seems odd months I smell blood when I go for wee but no blood, so dec 2017 I had a period yehhh around 1 and half week later I had sex now I’m getting all things to say I’m pregnant cramping, sickness, hot flushes, diarrhoea, cramping when I wee, and heartburn

Doc put me back on metformin been on it for 15 days now could this be metformin symptoms or could I be pregnant

Thank you