A young Black couple sits on a couch smiling, as the man lays his hand on the pregnant belly of his partner If you’re thinking about pregnancy, you’ve probably come across the term implantation in ...

The first steps of human development—those that occur within the first few weeks of pregnancy—remain mysterious in many ways. Within a week of fertilization, human embryos form a blastocyst, which ...

Human animals have a simple, direct system: copulation and sperm delivery may lead to fertilization of an egg, if the timing is right. Once a sperm joins an egg, the resulting zygote gets implanted on ...

Conception can happen within minutes or up to five days after sex, depending on when you ovulate. Identifying your fertile window and when you ovulate can improve your chances of conceiving if you are ...

The external uterus permits embryo implantation and embryogenesis. The process of implantation and embryo development was replicated on the external uterus. Osaka, Japan – The use of assisted ...

A recent Nature study evaluates post-implantation development in humans using embryo-like models based on genetically unmodified human naïve embryonic stem cells (ESCs). Study: Complete human day 14 ...

A team of researchers in the United States and the United Kingdom says they have created the world’s first synthetic human embryo-like structures from stem cells, bypassing the need for eggs and sperm ...