lovemimi1
May 11, 2012, 06:56 AM
Can a mans semen cause irregular menstrual cycle? And why
kimbearski
May 11, 2012, 11:50 AM
Mimi,
No, a man's semen inside the vagina has no affect on the menstrual cycle.
But of course, if that sperm fertilizes an egg--then YES, absolutely. I'm sure you knew that, though.