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.
This trusty device is also good for listening to babies in utero. 1  Typically you can hear the baby's heart beat at about 18 to 20 weeks, depending on maternal and fetal factors like the weight of mom, the position of your baby, and the location of the placenta. The stethoscope can be purchased at most drug stores, any medical supply store, and many of the uniform stores that cater to medical personnel.