Help!! I put Post-Graduate in Activities Section but am still in high school

For 3 colleges, I submitted an activities section where I checked off PG for one of my activities because I anticipated continuing it after high school even though I haven’t graduated yet (still a senior). Is this a mistake? I saw somewhere on the CommonApp’s FAQ page that students should check off the 12th-grade box if they anticipate doing it in 12th grade so I didn’t think the PG box would be any different.

any advice would be appreciated. is this big enough of a mistake that it’s worth contacting the admissions office?