Oh, absolutely yes it would be! It’s actually really powerful and helpful when cis people do things like list their pronouns in the bios or email signatures, or wear pronoun pins. It really helps signal to the community-at-large that respecting people’s pronouns is important, and that you can’t necessarily assume a person’s pronouns from looking at them. It also helps keep trans people who share their pronouns from “sticking out”. Do it, 100%.
The only caveat really is that wearing a pronoun pin signals you are an ally to trans folks, so make sure to live up to that as best you can. The pronoun pin in and of itself is helpful, but also make sure to stand up for trans people and to fight transphobic language and policies whenever you can.