I know in theory it is the day/ day after period due. My period was due yesterday and is usually like clockwork. We only had sex last Thurs (believe me, I remember as it was the first time in 6 months!).
IF this resulted in pregnancy, it is only a week old so would it be too early to test? Part of me wants to test to put my mind at rest, but I don't want to do it too early and get the wrong result. And I don't want to spend ridiculous amounts of cash on pg tests!