Reusing nipples for 2nd?

I’m due with my second baby this spring and am wanting to try to combo feed. My first was breastfed and hated the bottle! I have probably used almost all of the bottles once or twice, in efforts to get him to possibly take it. I know you’re supposed to replace nipples and pacifiers with a second, but my first barely used both. (Same story with the pacifiers-he would just chew on them for a little bit before spitting it out-but I probably have 10 different kinds of pacifiers)