It's in fact possible to develop a female body with XY chromosomes:
https://pmc.ncbi.nlm.nih.gov/articles/PMC6586948/
Also warning that article has images that may be inappropriate in a public setting. I didn't realize when I linked it.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6586948/
Also warning that article has images that may be inappropriate in a public setting. I didn't realize when I linked it.