Baby carrier

Hello 2nd time mummies just wondering when did yall stop baby carrying with your baby carrier your first child? My hubs is going in for reservist soon and I have to handle my toodler who do not like to walk to school in the morning and needs carrying. Would like to know if is safe to baby carry still? By then I will be in the start of 2nd trim my toodler is 12kg 🙂‍↕️