If you are not feeling movement under those guidelines, your doctor may ask you to come in for fetal heart monitoring to make sure that your baby is okay. (verywellfamily.com)
I didn't have the constant heart monitor on the whole time, but eventually they did put it on, wish they hadn't, I would have been more mobile. (mamanatural.com)
A fetal baby heart monitor can provide parents with peace of mind as early as eight weeks into pregnancy, not just when they visit their health care provider. (pregnancy-info.net)