The pill does not prevent menstruation even though ovulation does not occur. I'm curious because I want to make sure that my body produces a healthy environment for my baby. It is important you understand what is going on in your body. Prolactin prevents both ovulation and menstruation through its inhibition of gonadotropin-releasing hormones normally produced in the hypothalamus. Since both ovulation and the effects on the lining of the womb are inhibited there is no excess lining to be shed.
Nothing needs to happen except to wait for the normal cycling of all the hormones.
The oral contraceptives with 50 mcg of ethinyl estradiol are associated with a longer time for normal menstruation to resume. Just hold on. It will happen. Dr. JJ First of all, I think your website is fantastic. My comments are more related to going off the pill.