20 week anatomy scan!

K.
Hi ladies!
I had my 20 week anatomy scan today and though they were able to get everything they needed, he didn't cooperate and they weren't able to confirm his gender. 😔 I was told at 15 weeks he is a boy and have felt confident in that but now I have a nagging worry in my mind. The good news is that he's very healthy so far and developing on target! Here is his 15 week ultrasound - what do you think? Definitely boy?