Gender at 13 weeks. Boy or girl? Scan photos

I know its hard to find out the gender of the baby this early on. But was wondering what people thought.. I'm thinking boy but my man is saying girl. This was my scan I had yesterday. At 12 weeks and 5 days

Ive been looking online and came across the nub theory. I don't really know how reliable it is. Or how to tell the differents. Haha

Thanks

Vote below to see results!