Period is four days late negative pg test got a bilateral salpingectomy done five year ago .. can anyone tell me what should i do ?? is it normal to not have a period.?

Some women who are usually very predictable can skip a cycle occasionally. If it goes past two months with a negative pregnancy test many OBGYNs would offer meds to bring on a menses. By that point it would usually be quite heavy.

Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. Consult this site. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx