Perlu minum air gula 2nd ke?

Nak tye mommies² yg pregnant... Kalau 1st time minum air gula kat klinik or hospital then xsangkut gdm.. asakah kita kena minum lagi utk 2nd time? Sebab anak 1st sy sangkut gdm... And 2nd nih 1st minum xde gdm... Nk tye... Ada tak mommies yg berpengalaman gini? #gdm