PCOS - 2 NEGATIVE TESTS STILL NO PERIOD

Shaune
Hi guys. Wanted to get your opinions. I was diagnosed with PCOS at 14 and I'm now 24. I got married in October last year and have been off the pill since September. I've miraculously been regular up until this point. My period was supposed to start around the 3rd and it still hasn't. I did a test 3 days ago and yesterday again. Both negative. Think it's just the PCOS doing what it does or could I be getting false negatives?