I am 20 years old and very happily married.I have always had very irregular periods. Over the past three days I have been experiencing really bad nausea I have also been very tired and dizzy. Yesterday one of my breast started to hurt. The dr said I would probably never be able to have children so we have gone with out using protection for over a year now. I took a home pregnancy test and it was negative but I am still very concerned. If I am pregnant I would be so excited but trying not to get my hopes up any advice or information would be great. Due to my irregular periods I have no idea when I can say I have missed my period I just don't know how likely I am to be pregnant.