Ambil je booster, mama! A few of my mum friends dah fully vaccinated plus booster while still breastfeeding, and baby diorang okay je, actually some doctors say the antibodies from the vaccine boleh pass through breastmilk lagi, so extra protection for baby. Just make sure you stay hydrated and rest well after the jab, sebab sometimes the side effects boleh affect milk supply if you're exhausted. If you're worried about anything, just check with your gynae or paediatrician, they'll confirm it's safe for you and baby.