Hi, I understand your concern. The symptoms you had including delayed periods for 7 weeks with nausea,tender breasts,fatigue are symptoms of early pregnancy. BUT your pregnancy test was never +ve. That rules out pregnancy . You got periods without taking any medicines for it. This also suggests abnormal/irregular period. First understand the reason for early pregnancy signs. -When a lady menstruates, the normal hormonal content of blood which has caused collection of blood vessels in uterine lining- drops down. the blood vessels break & bleeding starts. -But in case there is conception, the hormones do not drop ,instead the menstruation is stopped, hormones go on collecting in blood & help the fetus to grow. _ the pregnant woman s body is not used to high level of hormones & it reacts to produce pregnancy symptoms. * Now in your case, there was delayed period, naturally hormones continued to be in blood- the uterine lining became thicker & blood level of hormones went on increasing---- - That is why you had pregnancy like symptoms.But the pregnancy test which is due to hormone( HCG) which is generated from fetus remained -ve. * All the thing suggests irregular menstruation. I would advice you to get examined & investigated for it by a gynecologist. & start with treatment advised. Get your periods be normal. Thanks