Number of ultrasounds??

Kellie
Hi mommas!
Just curious, I am 15 weeks going on 16 and have only had 1 internal ultrasound. How many have you guys had and how far along are you?? My next internal is the 24th for gender reveal, I also feel like I could've found that out earlier?? Just don't want to miss out on photos and such. We've been doing heart beat check ups which is reassuring, just curious!!