I think it would be a miracle if you are pregnant. If you are on the pill and taking it correctly, were irregular before and that's why you are on the pill and he also wears a condom? I really do not think you are pregnant. I understand about being worried about pregnancy but you sound very careful so that is good. Not having sex is the only real way to NEVER risk pregnancy but without that drastic step, you've got the bases covered. good luck