To test or not to test? Advise please?

​I'm currently 12 DPO and my period was due today. I've been having loads of awkward things happen recently :( I've taken a couple of pregnancy tests and I've had multiple positive results and also multiple negative results. I've seen the doctor who has said that she thinks I may have polycystic ovaries and I'm currently waiting for a scan.. There's a massive waiting list! I'm hoping to be able to see a private doctor soon and hurry the scan along... Today I was due for my period and I have not come on. I'm extremely tempted to take a pregnancy test but I know there is no point because if it's positive I'm still not going to know for certain if I am or not :( I'm having lots of symptoms. My boobs have gotten a Lot bigger all of a sudden (also I normally have inverted nipples, but suddenly I don't) and also I've been having stomach cramps, and feelig really uncomfortable.. My periods aren't regular anyway I haven't had one in ages. Since this month was my first month off the pill I was due on today according to glow calculating my ovulation... But no period :/ has anyone ever had an experience like this? With having both positive and negative tests? Does anyone know if this is related to polycystic ovaries!? It's getting really hard to handle now :( I just want to know if I'm pregnant or not. Espessialy since I want this to happen so much!! ✨? any advise? Do I test? Do I not test? I haven't tested in about 2 weeks due to not really trusting the answers.. Help please... ?✨?✨