AF was due today and I haven't gotten it but I am not holding my breathe because recently it will show up in the middle of the night that night. Here's my problem, because I am not too positive I will be pregnant (my husband is gone and we had sex but it wasn't during my fertile period) I would like to put a tampon in for the night ( I have done it before) but I have just read tonight that this could cause TSS. I don't want to mess up my sheets because pads slide around and I just don't trust them. Suggestions?!