I am 35 had a tubal 11 years ago. The last 3 weeks ive had alot of pregnancy symptoms they include headaches, fatigue ,nausea, backache ,tender breasts, urinating alot,mood swings, crying for no reason and a little weight gain . I had a light period this month on the 4th that only lasted 3 days. Now yesterday i started spotting really light pink blood. Any idea what could be wrong