Hey so like, my mom wanted me to get the depo shot on my next OBGYN appointment, so I was wondering how it works with periods?

I know a lot of birth controls either lessen or stop periods altogether, but I was wondering how this one specifically affects it. I know the basics of the shot: it lasts for 3 months and is pretty effective (still gonna use condoms with it tho), but most info I find doesn't really go over how it affects periods. I figured it might also be better to get first hand experiences from women on here too.