You should visit the Pregnant Runners thread (or the Mums Running Thread) as there are loads of us there that have run throughout pregnancy.

meredith, like the previous posts said there is a regular well established running in pregnancy thread, have a look over here http://www.runnersworld.co.uk/forum/forummessages.asp?dt=4&UTN=71708&last=1&V=6&SP=

Been running fairly steadily throughout my pregnancy and am now 30 weeks along.  My pace has gone from 8 1/2 minute mile to a 12 minut mile with frequent walking breaks to accommodate for all of the gas pains and crmaps I have been having...but as others have said, the main thing is going out and enjoying your runs....wonder how long after giving birth it will take to run like a normal person again?

I have been inspired by RW articles on women running during pregnancy and am determined to follow in their footsteps myself (providing I am well enough to do this of course). However, all the books & magazines I read repeat how you mustn't let your pulse rate increase to more than 140 or get out of breath etc etc. I am used to running 7 1/2 min miles and marathon training. This seems incredibly slow, I'm convinced some peoples 'level of exhaustion' is my feeling 'a bit tired'. I'm still in the 1st trimester, if I feel fine is it to run as normal?

I had my 12 week scan on Thurs, have not run for over 12 weeks as had bleeding in early pregnancy and had miscarried in October. I was desperate to get back to it so asked my consultant if I could restart - she said yes so I was straight out there this morning, albeit 10 mins with a 1 min walk break in the middle. Felt amazing! I am so inspired by all your stories of running well into the third trimester. Am already doing a lot of walking and yoga. I am determined to keep it all up! Have plans for a half-marathon Sept after my due date in November.  RB x

So glad to discover this pregnancy trail and finding out I'm not the only one out there !I am 14 weeks pregnant now, finally starting to feel better with the morning sickness now and eating a bit more. The beautiful weekend that just has helped me going back running (I was feeling so sick before that and could barely do anything). I went back on Sunday for a 6 mile run, I used to run about 28/30 miles a week before getting pregnant, but I had to run/walk on Sunday because I am monitoring my heart beat and I have to keep it under 140. I do get to 140 really fast though, although I do not feel any worse when I run, I do stop to walk and sip my Powerade or water as I found it drives the heartbeat down faster. I want to run till as far as I can in the pregnancy as I feel so good when I run I was wondering how other pregnant runners cope with the 140 ceiling, are you walking too - also, my GP and mid-wife are ok for me to carry-on as long as I monitor the heart-beat and I don't compete or race.