ladki pregnent kaise hoti hai

plantation Fertilization ke baad, zygote turant hi fallopian tube ke raaste se uterus ki taraf badh raha hota hai. Zygote ka vikas Cell division: Zygote ke cells tezi se divide karte hain, jise embryo ke roop mein jaana jata hai. Blastocyst: Kuch dino ke baad, embryo ek blastocyst ke roop m