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.
It depends on how pregnant you are. Your baby will start to hear between 23 weeks and 27 weeks. The constant beat of your heart is the clearest sound for him, but he'll also be able to hear some of the things going on around you. Your baby will only hear low-pitched sounds to start with. These sounds will be mostly what's going on in your body, such as blood pumping through your vessels, your tummy gurgling and your breathing. Between about 29 weeks and 33 weeks your baby starts to make out high-pitched sounds too, such as a child's cry or a car alarm. You may be able to tell if your baby can hear sounds outside your womb (uterus) by playing music, and reading or talking to him. If he can hear what's going on, he may respond by moving around more. Studies of newborn behaviour show that babies get used to the music and voices they've heard in the womb.