I was having problem with my patches back in aug and AF showed up twice

I was having problem with my patches back in aug and AF showed up twice. Per the advice of my doctor I stopped applying my patches in sept. had AF in october and we decided to stop the bc and ttc. I didnt have AF for Nov or Dec and all pee tests were coming up BFN and then I had a blood test on Dec 3 and that was Neg but I had a hunch since my pants were fitting tighter and sure enough, my test was pos and blood test came up pos. I am 8 weeks preggo!!!!!