My pre pregnancy weight was about 134 or 135 lbs. I dropped about ten lbs and have gained 9lbs. At 27 weeks I am back at 133.8. Is this bad?

Pregnancy. You are doing fine.Your OB will know if your baby is ok by pelvic ultrasound. The usual gain in wt is 10 to 15 lbs.
No. This is not unusual. Mostly we track weight from 20 wks on as often women will lose weight in the first trimester. Really the key is if you are eating, and eating proper amounts.