No period, no sex

I've missed my period by 10 days, but I'm not really freaking out. I just kinda want answers.

Over the past year, I've begun getting long hairs on my chin. Only two that consistently grow at a slow pace.

I have also begun having more and more irregular periods. But nothing as major as 10 days.

I don't think it's PCOS, but I wouldn't complain about getting more testosterone in my body, since I'm Genderqueer. So I might just let it be if it's just PCOS? But is there anything else that could cause this? I just don't want to let this be if it's something more serious than I think.