Almost 17 years old - Will girth grow more?

I'm 16 right now, but in May I'll turn 17. I'm more than happy with my penis length- bith flaccid and erect. Very above average and I won't post it unless you want me to if it helps. What I'm worried about is my girth. My flaccid girth is only about 3.5 inches and erect girth is only about 4.5. It seems pretty thin especially with my length. I've heard that it can start growing late puberty, but I don't know. I'm pretty much done growing at 5'11; I can grow facial hair, but I only need to shave it week once every 2-3 weeks and it's very scraggly/not thick; I have a little bit of chest hair that I got at 15, but it hasn't grown more than what I can tell from when I got it at 15. Testicles are big/above average and I can ejaculte and all that, pretty much all the usual. I don't know any sizes of my dad, grandad, any male family members, so I can't give you that. Thanks