Emotional Mess

Kate • 33. Canadian. TTC #1 since Aug. 2014. PCOS. MC in June 2016. Uterine septum and ovarian cyst removed January 2017. Started Metformin January 2018.
I don't know what is going on with me. 😔 I've been crying, staying in bed... My poor husband is really getting it this weekend. I've been rude and irrational with him. 
I'm worried that there's something wrong with me and that's why we haven't conceived yet (we've been trying for 8 months). My periods can be irregular, but OPKs have shown positives.
I'm on CD42, and I ovulated late this cycle on CD24. I'm 2 days late and HPTs keep coming back negative. I am so frustrated... and sad.