As soon as the eggs splits it has its own DNA and at six weeks the mother can detect the heart beat.
NO, a six week old fetus does not have a heart. And until much later, the mother has no idea whether it has a heartbeat or not; an ultrasound is needed for that.
What does that mean? It means that a woman's egg is a single cell organism. After about 30 hours, it splits into two cells, and so on. After three days, it has 16 cells.
It does not have a heart. Or a heartbeat.
You know what I think you should do?? I think you should leave all this to women and their doctors.