Ahhh mama, don't worry lah, tak ada period lagi after birth is quite normal, especially if you're breastfeeding, sebab hormones still adjusting. Since you're on the pill already, you're quite protected, so the chances are low lah! But since you're feeling a bit anxious about it, maybe check in with your gynae or clinic just to put your mind at ease, they can confirm everything is on track, especially this early after September birth. Take care, mama!