The experience of the coder. The complexity and size of the app. How bulletproof the app has to be, e.g. something to be run by a hundred tolerant people vs generally released to the public. The country the coder is living in.
A: On transvaginal ultrasound, you can usually see the heartbeat by about four weeks after conception. In obstetrics, we traditionally count weeks from the last period. For a woman with 28-day cycles, a month pregnant is about two weeks after conception, and you would not expect to see a heartbeat. But by a month after conception, youâd be right around the time a heartbeat is expected.
The baby's heart starts to beat at around 6 weeks. You may be able to hear â and see â your baby's heart beat for the first time when you're about 8 weeks pregnant if you have an early ultrasound exam. Hearing it for the first time can be very moving. 2  The heart rate of a healthy baby in the womb ranges from about 120 to 160 beats per minute. 3  A heartbeat that's much faster or slower than that may signal a heart problem.