my breast have been a bit tender and itchy for about a week. my period was due the 10, im on birth control but havent been taking them correctly. i feel a bit dizzy and haven't had an appetite for days. lately i feel very tired and after class i need to take a nap. last month my period was long, it was light and lasted about 3 wks it started around the 10th and ended around the 26th. should i be taking a hpt soon?