Feel achey, crampy and bloated. Am 4wk3d I think. Is this normal? Didn't get a BFP until 2-3 days after AF due, means HCG levels must be low? - can't be a good thing. Can't decide if I'm just being paranoid though, or if I should be worried that this pregnancy 'won't stick'. I have no history of MC, last pregnancy was fine.