Hi, im 24 and married for 3 months. Have always had irregular periods. Stomach looks like i'm pregnant, constantly nauseous and constantly fatigued - use to being very energetic and even working 2 days in a row with no sleep, now everything's an effort. Have done home pregnancy test and are all negative. Nipples has been erect and sore for over a week, and urinating alot with burning sensation from time to time. Just finished a period. I'm highly confused. Is there anything i should get checked up for?