They summoned the goddess Yogamaya and had her transfer the fetus with the womb of Devaki for the womb of Rohini (Vasudeva's other spouse who lived with her sister Yashoda throughout the river Yamuna, during the village of cowherds at Gokulam). Hence the kid conceived in one womb was incubated https://digitalasset.sfo2.digitaloceanspaces.com/SouthernCaliforniaSurrogacy/Becoming-A-Surrogate-In-Southern-California.html