17 weeks 5 days!

Veronica • First time mommy! 19 years old. Michael Joel Garza 👣 October4th2015 due date! 👶
I have a doctors appointment may 5th I was wondering if I'd be finding out the gender of my baby I'll be 18ws2days then. Do you think my doctor would of told me I was going to find out then or what? I'm a first time mommy, and I heard that usually between 18-20 weeks you find out the gender. Let me know please!