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.
The baby's heartbeat can usually be heard at about 10 to 12 weeks using a doppler or ultrasound at the doctor's office. I heard my babies heartbeat from 6 weeks on a doppler, but its easier to hear on your scan which is at 12 weeks. Usually at around 12 weeks you can hear it with a doppler. There really is no definite date that you can guarantee hearing it. 12-13 weeks by doppler, usually.