I have one that is part of my running gps watch. I wore it for the first few months of pregnancy, though not necessarily for the HRM part.
If you are worried about your hearbeat getting "above 140bpm", you don't need to. Most doctors are now saying you can continue with the same type of exercise you did pre-pregnancy but pay attention to your body. If it feels too hard, it probably is.
I'm still running 3-4 times a week going by this recommendation instead of worrying about my bpm and it's been working out great.
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My HRM is a Polar S120 which they don't make anymore, but the Polar brand itself is excellent. Definitely check with your doctor about what s/he would recommend, but my OB says that (for me, anyway) I should stay below 165bpm when exercising. As the pp said, if it feels too hard, it probably is time to ease off a bit. If you can have a conversation while doing your workout, you're working as hard as you need to.
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I have a Polar as well and instead of staying under 140 I try to make sure i don't leave the target zone. My OB said to continue what I am doing but always make sure I am able to carry on a conversation.
TTC since 07/2010
BFP #1 11/10/11 Natural MC at 6w4d
BFP #2 01/23/12 MC at 12w. 2x Cytotek 1x Methergen; Genetic testing found Factor V Leiden and MTHFR. Started extra Folic Acid and Baby Aspirin then Lovenox
BFP #3 07/02/12 EDD 3/13/13 . Rainbow Baby born at 37 weeks, all natural, after 10 weeks of bedrest. BFP #4 ST. PATTY'S DAY 2014. EDD 11/25/14
Re: HR Monitor?
I have one that is part of my running gps watch. I wore it for the first few months of pregnancy, though not necessarily for the HRM part.
If you are worried about your hearbeat getting "above 140bpm", you don't need to. Most doctors are now saying you can continue with the same type of exercise you did pre-pregnancy but pay attention to your body. If it feels too hard, it probably is.
I'm still running 3-4 times a week going by this recommendation instead of worrying about my bpm and it's been working out great.