I stopped taking Wonderup about a month ago (not sure exactly what day) and now my period is 6 days late! I've already taken two pregancy tests that both were negative(one was First Reponse, and that was just yesterday, so I'm pretty sure it's accurate. Also, I haven't had unprotected sex so it's unlikely.). Has anyone else experienced a delay after stopping taking the pills? I'm not on BC or any other meds...