Pregnancy Info HOME

Hello! I'm 10 weeks pregnant, and I'll be running the NY marathon at 14 weeks (it'll be my 7th marathon). I ran a 1/2 marathon at 7 weeks and was shocked at how quickly my heartrate went up, even when I felt I could have run three times faster. I asked my OB if it was okay to run NY, just to be sure, and he looked at my like I had two heads and said "Sure, exercise is great!" He just said to try to keep my heartrate under 140 or 150, since higher heartrates may raise the body's core temperature, which could harm the baby. But he said as long as I monitor my neartrate, it's no problem. So, what I want to know is... has anyone run a marathon while pregnant? Any tips?