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.
Near the end of the first trimester â by about nine to 12 weeks of pregnancy â you might be able to hear your baby's heartbeat with a small device that bounces sound waves off your baby's heart (Doppler). Remember, your health care provider is there to support you throughout your pregnancy.