when does your baby heart start beating
The baby's heart starts to beat at around 6 weeks. You may be able to hear – and see – your baby's heart beat for the first time when you're about 8 weeks pregnant if you have an early ultrasound exam.
A 2006 study showed no gender-related differences in fetal heart rate during the first trimester, but Mass says that's no surprise, considering that babies' hearts beat faster in general during the first 28 to 30 weeks of pregnancy.