This is where it gets complicated, my last AF was 25th March, so i am 3 weeks late anyway, but i got definate pos OPKs last weekend, i am normally every 28 days, but i am now on day 48!
A faint positive is a positive no matter how faint it is! Especially if you're that late! Congrats! Call up your doctor and get a blood test just to confirm and check your levels to make sure all is well