Tina

I am now 42 but when I got pregnant with my third and fourth child, like you I knew what my cycle dates were. The Doctor argued with me about it and tried telling me when I had my last period, crazy. All I cn tell you is that with my last child I had my period Jan 15th that lasted 7 days but did not have sex until Feb 13 as my husband was recuperating from surgery and that was the only time we had sex in 8 months. Then on Feb 15th I got my period on time and was still bleeding 9 days later and called the Doctor as I was annoyed my period was lasting so long and all I got was questions about pregnancy symptoms(never had any)..To make a long story short I took a test and it was positive and then was worried as I was spotting, thus the end result was 2 progesterone suppositories for a threatened misscarriage and ended up having a small but healthy baby who was a week early..Samething with third child. I never got an explanation, but did always measure a month earlier than I was, sometimes there is just no reason..Just stay positive!!