My girlfriend got on birth control about 2 months after we started dating. We've been together almost 3 years. She's talking about wanting to switch to IUD. There's no good reason for this, it's not like she's suffering from any side effects on the pill.

I've read stories of women that come off birth control and it totally fucks with their head, and their actual preferences towards men change. I've heard of women literally no longer finding their partner attractive lol.

This seems to be more common amongst women that are dating a "feminine" guy, with feminine features etc. This is the opposite of me to be honest, I look and am masculine (muscular physique, full beard, tall, strong frame etc. all the typical masculine features and traits), but still, the thought of her switching up after coming off birth control still kind of concerns me.

In theory things could change for the better for us, she could become even more attracted to me as her desires for masculinity increase even more with her natural cycle.

Thoughts? Am I just overthinking this and likely it's nothing to be concerned about?