Ay, talagang possible yan, mama! Twin pregnancies run in families kaya if parehas sila nag-undergo ng fertility treatment or may family history, hindi talaga surprising, a few of us have relatives na ganyan situation. But yeah, laging may possibility din na may anak na siya from before or may arrangement na di natin alam, ganyan lang talaga pag may big age gap sa couples hehe, kaya ang safest is just to ask directly kung comfortable kayo sa tanong!