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.
Experts now agree most unborn babies can hear sometime in the third trimester, some as early as 20 weeks. Sonograms have shown a fetus to turn its head toward a sound, and very loud or startling sounds can speed up a baby's heart rate or movements. Naturally, the baby can hear your voice, your heartbeat, and other sounds your body makes as blood flows through your veins and your stomach digests food.