I'm getting impatient!! 😑

Haley β€’ 25 yrs old, married, 3 year old daughter πŸ‘§πŸΌ Angel baby πŸ‘ΌπŸΌ and currently expecting our rainbow baby πŸŒˆπŸ’•πŸ’™
My doctor does not do the Harmony test or any blood tests that tell you your babies gender. They don't seem the least bit interest on ever telling me or helping me figure this out. I saw doctor on Tuesday, he scheduled me to come in for my monthly check up on 4/20/16.. I'll be 18 weeks then. I asked if they would do ultrasound then.. He said no. WTH. I need to know, I have lots to buy and I need to know to buy freaking pink or blue. Help! What do I do? Can they tell at 18 weeks? I see ladies with ultrasounds showing babies gender and they aren't as far along as I will be..Β