hi, first do ultrasound to rule out ovarian cyst and pcod. if it is nt there then your period is irregular due to hormonal imbalance , take advice of infertility specialist.

Since your pregnancy test is negative, so you might be having hormonal imbalance, get an ultrasound pelvis of you done, To rule out any pathology.

Please read my blog on PCOS. Hope that helps.

Hi....., In a normal menstrual cycle, a balance between the hormones estrogen and progesterone regulates the buildup of the lining of the uterus (endometrium), which is shed during menstruation. If a hormone imbalance occurs, mentrual irregularities occurs.....To conceive your periods should be regular.... Consult your gynecologist for further evaluation....