Answer: After fertilization, usually in the ampulla of the oviduct, the cells begin to divide. A blastocyst eventually becomes a marulla, and it travels to uterus where it implants on the thickened endometrium.
Answer: combined action of cilia that line the wall of the tube and the muscular contractions of the wall itself. also, differential fluid pressure along the tube may play a role Source: Fauci and Dillon, Annu Rev. Fluid. Mech. 2006, 38:371-394