Needing encouragement

Feeling so overwhelmed after my appt today. Sonogram shows my baby is healthy (thank goodness!) but they estimate he already weighs 6lbs 14 oz and I'm only 34 weeks. I'm so uncomfortable--how am I gonna do this for 6 more weeks?? And I feel guilty--I've gained too much weight and I feel like it's my fault he's so big 😞 I know I should just be thankful he's healthy but I'm hormonal, overwhelmed, and ready to be done!!