Ongoing gender disappointment

So I found out I was having a girl thru Qnatal test. To say im disappointed would be an understatement, since finding out it's a girl which we do have a name for, I have yet to buy her anything at all I'm 15 weeks now and I still hope at the anatomy scan it will be a boy. When I was this far along with my son I basically had all his stuff bought by now but at this point i just feel disconnected from the pregnancy i dont even bother looking at clothes for her or nursery items. I feel like a bad mom to be but honestly i would rather just have another son than a daughter, I'm not exactly girly girl and I hate girl colors, so idk what I would even buy her at this point. Idk how to get over this gender disappointment my anatomy scan is on the 20th and I just pray the baby has grown a penis by then 😂