SMTP Protocol: The SMTP (Simple Mail Transfer Protocol) protocol is used by the Mail Transfer Agent (MTA) to deliver your eMail to the recipient's mail server. The SMTP protocol can only be used to send emails, not to receive them.
In general, you will be able to hear your baby's heartbeat when you are about 8 weeks pregnant using an obstetrics ultrasound. Or you may be able to hear the baby's heartbeat during regular prenatal care visit at 10 weeks, or more commonly at 12 weeks, with a fetal Doppler. The new fetal care technologies now allow for a much more specific time frame. We now know that your baby's heart begins to beat around 6 weeks after conception.
You can hear babyâs heartbeat with a stethoscope! Exciting circulatory developments continue at 12 weeks, when baby-to-beâs bone marrow begins busily producing blood cells. And by 17 weeks, the fetal brain begins to regulate the heartbeat in preparation for supporting baby in the outside world. (Up until this point, the heart has been beating spontaneously.) In three more weeks, by around week 20, you can hear your babyâs heartbeat with a stethoscope. If your doc needs a better listen (and a view), she may recommend that you get a fetal echocardiogram, a special ultrasound that evaluates the fetal heart between 18 and 24 weeks.