Sperms will swim towards vagina during copulation.
If ovum presence in Fallopian tube, fertilisation might occur.
Fertilisation will produce zygote at Fallopian tube.
After fertilisation, zygote divides into a ball of cells (embryo). Embryo will implantation the uterine wall at the uterus.
The implanted embryo will grow and become a foetus, and eventually turns into a baby. This process is called pregnancy.
The time taken to deliver a baby is about 38 weeks.