Yes I will affect ur Bby.. as I ws also Hvn sugar in ma 9month I followed diet n medicine.. so aftrwrds ma sugar level was normal.. 
But it is said Dt if v don't tk proper medicine aftr delivery bby sugar level become low.. so Pls tk proper medicine .. 
Even if my sugar level was normal Aftr my delivery still dy wr monitoring my baby's sugar level for 3days ..

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Yes you have to take proper treatment for it

Iam 5th month pregnant. .i was attacked with sugar... i want to know it will get affected to my baby if i won't take sugar tablet's