Late late late!

Liz • Trying for over 1 year with PCOS
Im over a week and a half late, not particularly unusual since my cycles range from 30-45 days but 50?! I've made an appt with the doc but they said even though I have had 3 BFN home tests they still won't do a blood test until they see a BFN at their office! I'm ready to just give up. That and my weight is increasing, breasts are tender, mood swings at the drop of a hat, extremely tired, and there better be a bathroom near by because I always have to go! Oh, and I have been having headaches and on and off back pain as well.