Pap smear!!

I’m 18 and i’m about to have my first ObGyn appointment. I’m supposed to get a pap smear while i’m there. Can someone tell me what that’s like? I’ve done some reading and I know it’s not much bigger than a tampon, but is it that easy? I’ve had sex before, so it’s not like I haven’t had anything up there lol. just kind of freaking out!!