Wean off anak 1st dr fully breastfeeding

Hi sy bru check upt, positive semalam, pregnant 6 minggu. Skrg tgh fully bf ank 1st (1 tahun 9 bulan) . Sy nk slow2 wean off ank 1st dr bf. Ada tips tak? Macam mana nak start, supaya 2 tahun nanti betul2 wean off dah.