Alhamdulillah, congrats on baby number 3! Honestly, many of us continue BF while pregnant, it's safe, though some babies self-wean because the milk taste changes or supply dips slightly, so jangan kaget if your 2+ year old loses interest on her own. I'd say check with your doctor or midwife just to make sure everything's progressing well with this pregnancy, especially since you're still breastfeeding, tapi biasanya takde masalah pun.