Baby does not form in the ovaries. In the ovaries only egg is produced which travel to fallopian tube after ovulation. Sperms also travel to fallopian tubes after ejaculation during sex. Both egg and sperm can combine together in fallopian tube in a process called fertilization. After the fertilization, fertilized egg travel towards the uterus where implantation takes place. So, foundation of the baby is laid in the fallopian tubes while growth occurs in uterus.