Unless you tell more about the embryos, there is no way of knowing because we don't know what the first one might be.
The first stage of an embryo from an egg is the cleavage stage, where the egg undergoes rapid cell divisions without growth, producing smaller cells called blastomeres. This stage eventually leads to the formation of a multicellular embryo.
Embryo
It was a woman who first saw embryo coming out of a seed
The first step of embryo screening is typically to obtain a sample of cells from the developing embryo. This can be done through techniques such as biopsy or removing a few cells from the embryo for genetic analysis.
The embryo lasts until about week 10 or 11 and then it is known as a fetus.
An embryo is typically considered to be in the stage of development from conception to around 8 weeks after conception. At this stage, the embryo is rapidly growing and developing its major organs and structures.
how big is the embryo when you began to hear its hearbeats?
first
embryo
The first organ to form in an embryo is the heart. It starts to develop early in gestation and is essential for pumping blood and circulating nutrients throughout the body as the embryo grows.
The first organ to develop in the embryo is the heart. It starts to form and beat as early as 3 weeks after conception.
Gastrulation