Why is the baby’s heartbeat sometimes not heard after the first-month Pregnancy?

Mothers ask that I have a 5-week or 6-week or 7-week pregnancy, and yet we are unable to hear the baby’s heartbeat, or in which week the heartbeat begins to make sense. However, mothers do not realize the baby’s heartbeat in early times. This experience is only when ultrasound occurs in pregnancy. She is able to see the ultrasound, and if she can see the beating of the child’s heart, then only she realizes motherhood. The baby’s heart starts forming after 22 days of pregnancy. It is processed after about…