The implantation of a fertilized egg is estimated to take place about 9 days (+/-) after ovulation. So, once conception has taken place, the blastocyst has to travel up into the uterus, and then implantation takes place once the blastocyst has found the spot in the uterine wall that it wants to attach to.
The definition of gratuity is a sum of money given to someone who provides service or a favor as a way to show graciousness or thankfulness. An example of gratuity is a tip left for a server at a restaurant. gratuity. pl. gratuity.
A voluntary transfer of property or of a property interest from one individual to another, made gratuitously to the recipient. The individual who makes the gift is known as the donor, and the individual to whom the gift is made is called the donee. If a gratuitous transfer of property is to be effective at some future date, it constitutes a mere promise to make a gift that is unenforceable due to lack of consideration.