Totoo po bang kapag tinubuan ka ng pupp rash it means you're carrying baby boy?

I have pupp rash before and baby boy Yung first born ko and then I have it again Yung pupp rash I was manifesting a baby girl this time. I'm 22 weeks 5 days pregnant pwede na po ba ako magpa ultrasound I was very excited and less disappoinment kung boy ulit coz I really want girl.