Who's waiting????

Brenda • Hispanic,TX,Married&👧🏼👧🏼👦🏻👦🏻👦🏻👶
So I first mentioned with this baby that I might not want to know what the sex of the baby is until I deliver my DH said no he wanted to know. Then last night he said he didn't want to know and wanted it a surprise. This sucks now I want to start buying stuff after finding out which is soon. I have an appt today at 14 weeks 6 days so should I just mention it to the doctor? If we change out mind can we find out later? This sucks lol is anyone not finding out until delivery? I see a lot of women knowing what they have a lrwady and some waiting until 20 weeks. Any advise? I have 2 boys and 2 girls already so it's not a big deal of what we have but I feel like its going to be a girl.