I'm suppose to have my pierod the 23 of October and is Halloween and nothing I tried a pregnancy test like three days ago came out negative I tried 3 the same day I've been having unprotected sex for the past months since April everyday sometimes 3-5 times a day but I've got my pierod every month and I'm not on bc I'm just not feeling myself at all lately tired but can't sleep and upset stomach what should I do ?