I have always had regular periods. I am 41 years old. Last january 2013, I began a very rigorous workout schedule. I lost 12 lbs last year...but, was only 140 lbs when I began. This January, I had a period on Jan. 1, Jan. 15, and Jan. 28...I also have thyroid issues. I spotted twice last week after my workouts. Last night my husband and I had sex and today, I am bleeding like I'm having a period. Is this normal? and, do you think I am beginning perimenopause? I have called my doctor and they told me to wait at least another month before I come in for ultrasound and blood work. I recently had blood work at my reg doctor and everything was good. My pap smear was normal...no concerns on Jan. 13. I'm just a bit scared.