I have pregnancy symptoms, got my tubes tied. have not had a period for 3 months, took a urin pregnancy test at er came back negative. what going on?

Get a blood pg test: See the doc who did your tubal or another gyn as u need a blood pg test and possibly other blood work and an ultrasound, because if you are pg and have had a tubal you are at increased risk, not necessarily, that the preg is stuck in the tube ( ectopic) which needs to be immediately treated, if u do not have a gyn now the er should have referred you to the gyn covering the er that day for followup.

Agree with Dr. P: 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