Confused and heart broken

Hi all Im currently 28 years old here's a brief history of my past 8 miscarriages and after 6 years finally got my special little man he's now 4. I have been TTC for 2 years and "felt" pregnant so did a test yesterday and it was a faint but what i thought to be obvious positive today I have done 2 different tests first thing this morning one was same brand as I used yesterday (first response) other was clear blue digital and both negative. I have no idea what is going on but I'm confused :( usually I've had positive test then lost fetus at around 6 weeks, one was at 9 weeks I've never had a positive one day and negative next. I went to Dr yesterday for bloods. Due for period tomorrow. Any ideas? I also suffer from PCOS