Jantina boleh berubah?

Mse 13week x berapa jelas tapi mcm girl. 21week details scan baby kepit tp sonographer try jugak nampak burger sign 3 garis. 25week jelas nampak burger sign 3 garis.. Mungkin x berubah jantina nanti? 😂 Kita dh excited nak beli barang baby girl pulak utk next shopping. Mse 24week beli unisex punye..