So I was diagnosed with the flu two day ago (started feeling bad 4 days ago), my period start day was yesterday. I'm usually ALWAYS on time or early. I haven't started late since I got my birth control on track. (I used to be horrible about not actually taking my pill) I haven't missed any pills this month and honesty, haven't felt like having sex either. I don't think I've actually had sex since like two days after my last period ended. (Protected sex of course). So I guess my question is, does being sick ever mess your periods up? Am I just being paranoid?