straight with flush possibility

[aaronjacobg]

very early in the tournament blinds 5-10

UTG limps
hero in utg+2 limps with 8c9c
four more call including sb and bb
flop is [ 7h Td 3d ]
bb bets 20
hero calls
two more callers
turn is Jd

What is my move here? I want to force out draws but what if one of the callers already has the flush? Then I'm just trapping myself.

Thanx
Jake