Bete kyunki garbhasay keval girls mein hote hai boys mein nahi isliye period sirf girls ko hee aate hai. Ise padh lijiye: https://lovematters.in/hi/resource/menstrual-cycle Yadi aap is mudde par humse aur gehri charcha mein judna chahte hain to hamare disccsion board “Just Poocho” mein zaroor shamil ho! https://lovematters.in/en/forum