marksman
My eldest granddaughter showing the result of her
1) your claim is abject nonsense
2) a heart muscle contracting is not a heartbeat - by any stretch of your wild imaginative concoctions.
We were through this .. and you were roasted....
Before about week 8 of pregnancy, a doctor may refer to the fetus as an embryo.
The heart of an embryo starts to beat from around 5–6 weeks of pregnancy. Also, it may be possible to see the first visible sign of the embryo, known as the fetal pole, at this stage.
The heart of a fetus is fully developed by the 10th week of pregnancy. Learn more about the development of the heart from weeks 5–10 below:
When does a fetus have a heartbeat? Timing and more
Pregnancy likely calculated as 2 weeks after conception so you can add a couple weeks onto the totals .. so realistically 8 weeks until anything resembling a rhythmic beat is achieved .. and at this state is is not like a normal beat .. but there is a rhythm of sorts.
a far cry from 18 days .. your not even pregnant -- as in the implantation until at least a week or two after conception ..
I guess you can make up anything you want if you are not interested in the truth.