Ahhh mak, scary kan first time positive especially dengan baby kecil 4 bulan. Betul-betul kena jumpa doctor atau call your clinic/hospital sekarang jugak to confirm what's safe for you and your baby, especially kalau you're breastfeeding, they'll guide you on isolation and feeding properly. Few of my mum friends yang positive masa baby kecil, they isolated in separate room kalau boleh, pakai mask when handling the baby, and sanitize hands before touching. Tapi really, doctor's advice tu yang paling penting sebab baby umur 4 bulan ni sensitive. Take care of yourself first juga, rest, hydrate, monitor symptoms. Mummy yang sehat means baby yang sehat jugak. Hang in there!