Ovulating? (Sorry, long post!)

Hello everyone,

I very recently had a miscarriage at 9 weeks (Baby stopped growing at 5-6 weeks and I marked the miscarriage as my last period, as shown on calendar) and the miscarriage happened on the 18th, then I went to the doc on the 19th and they said everything was clear and to come back in 6 weeks. So I took a hpt a couple of days ago because I wanted to see if it was negative yet so that I could take another one right before Valentines day so that I would know whether or not I should drink some while I was out because we had unprotected sex once during my fertile time. Anyways, that test was still very positive from my pregnancy.. But today I am a little confused because I had a small amount of pink spotting last night and this morning I have cloudy pee (which I have only ever had during my last pregnancy) and the last couple of days I have had heartburn... So does anyone have the slightest idea what could be going on?? I would think ovulation but since the test came back so positive, I'm assuming I have too much hcg still to ovulate.