Shelby got her first bottom teeth at 3 1/2 months

Now at 8 months shes got 2 bottom and 4 top teeth.
FYI The boys didn't get any teeth until 11 months +
The problem i have is when Shelby latches on, she kills me. I know its all new, and she soon adjusts her latch but for those few seconds it murders, like when we first started and she broke me!!!
Will she 'eventually' know how to latch on toothless or do i need to help her?