H1B, H4 Visa

I had my H1B interview on April 23. The visa got approved but the VO said they need to do some administrative processing on their end which will take about 10 days. I did my masters and was previously on OPT before starting H1B in October 2016.

Following are my questions:
1) Please pass passport and i797. So you work for XYZ?
2) What is your highest degree?
3) What do you do at XYZ?
4) Where are you located?
5) When did you graduate and from what University?
6) Were you on OPT? When?
7) Have you been outside of status?
8) What is intended date of travelling back - It is May 5th. Noted it down on a sticky note and stuck it on my passport.

VO then Visa is approved but admin processing on our end will take a few extra days. Usually it takes around 10 days, so for your travel I think you'll be fine, but we will let you know by email when passport is ready for pickup. Gave me a generic piece of paper saying you will receive an email when passport is ready.

I am worried. I exactly have 10 working days including interview day before I travel back. Plus, I heard it takes much longer. Anybody else in the same boat?

Thanks!