I think there is at least 1 more pp and something like AT+ or KT+ present. Maybe also a flush draw.
Especially the calls of UTG and MP2 would have scared me. UTG has put more than 70% of his stack into the pot, no chance of making any moves with about $8 left. MP2 called with one raiser/two callers in front of him.

I wouldn't think that three players are calling with hot air. And imo you just have 1 out, since 6h on the river, for me, would be a good reason to fold.

just my $ 0.02, but beware, I am a beginner