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Heart beat on early ultrasound

I am 45
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First of all, it is great news that you are pregnant! Big first step. Now for the statistics:

1) When someone your age gets pregnant, there is, unfortunately, a > 60% chance of the pregnancy ending in a miscarriage and < 40% chance of having a liveborn baby.

2) The presence of a heart beat is a good thing! It definitely means the odds of having an ongoing pregnancy are > 50%

3) Hard to comment on the slow heart rate. At only 6 weeks 1 day, the baby's heart rate will be slower than it will be at 9 weeks. As a rule of thumb, when the heart rate at 6w1d is 100 or more, the chances of an ongoing pregnancy (in younger women) is probably > 90%. If < 100 (in younger women) the chances are still pretty good but drop to around 60%. At 6.5-7.0 weeks and beyond, the cutoff number becomes 120 beats per minute.

4) I too am not worried about a 6w1d ultrasound at 6w5d. Ultrasound accurracy is +/- 5-7 days at this stage, and you may have ovulated a day or two late.

I know this is going to be a long wait for you, but you have already passed two huge hurdles: just getting pregnant in the first place, and seeing a heart beat on ultrasound. You are on progesterone. The rest is out of our hands at this point. Good luck!
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Avatar universal
Do you know what the heartbeat was? I know when I went in at 6 weeks 5 days her heartbeat was only 126 and 2 weeks later it was up to 170.  The heartbeat gets faster as the fetus grows.  At 6 weeks, it's heart just started beating and that's why it's slower.  My doctor did an ultrasound at 6 weeks 5 days and then again at 8 weeks 5 days. I think she mostly did it, because I was very sure of my lmp but the baby was a little behind (which is normal some babies grow faster in the beginning then others) but I ovulated late, and she just wanted to make sure the baby was growing on pace and to help keep me calm,since  I had a previous miscarriage.
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Avatar universal
Thanks for your comments.  We weren't told the heart rate, but It's good to know it can be slow to start out, and that there are normal variations in growth....
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