Glucose test

I just found out I failed my 1 hour glucose test and go back Tuesday for the 3 hr. I am 24 weeks and in good shape (iam 5 ft, 8 in, started out at 138 and now weighing at 147) I have only gained 9 lbs thus far and our little girl is measuring right at the 47th percentile in weight. I haven't had the perfect diet but I don't think it's been horrible. Feeling super guilty I have done something wrong 😞, I have read articles that said its not always about how you eat but how your hormones interfere, which can't be helped. Anyone else in the same boat?