Ttc number 2, last week on cd24 I started spotting which I thought was implantation bleeding. On day 27 it got heavier and I presumed af had started. It only lasted a couple of days and was much lighter than usual. I had a niggling suspicion I could be preg and out of curiosity I have just done an opk ( on cd 6)and got a smiley face!! I don't usually get one until cd 19. Am I pregnant?!