Oo, normal yan! Especially kung heavily formula feeding ka, ang period mo pwedeng mag-return anywhere from 2-6 months pa o mas matagal pa talaga, every mom is different kaya walang exact timeline talaga, sis. Best to check with your OB para sure everything's okay, pero most likely you're fine lang, wala dapat alalahanin. You're doing great managing mix feeding at all the postpartum adjustments, that's no easy feat! Your body will bounce back when it's ready, so don't stress too much about it.