When is a baby formed durning pregnancy?

A baby is formed during pregnancy at conception, which occurs when a sperm fertilizes an egg. This process typically happens in the fallopian tubes, resulting in a zygote that begins to divide and develop. The zygote then travels to the uterus, where it implants itself and continues to grow into an embryo, eventually developing into a fetus. This entire process marks the beginning of pregnancy, which lasts about 40 weeks.