I have found that when I have intercourse, 3 or 4 days later my period starts or some form thereof. Even if I have intercourse 3 or 4 times a month, I keep having this problem. It seems I am always bleeding in some fashion. If I do not have intercourse during a month I have one normal period that month. I am 51 years old and in the midst of menopause and do not know why this is happening. Any ideas?