His raise felt like a big hand and I didnt want to give him another chance to fold (or catchup). Push or reraise?

Paradise Poker No-Limit Hold'em, $0.05 BB (8 handed) FTR converter on zerodivide.cx

UTG+1 ($8.50)
MP1 ($10.55)
MP2 ($8.40)
CO ($11.00)
Button ($26.55)
SB ($10.72)
BB ($7.75)
Hero ($12.40)

Preflop: Hero is UTG with A, A. SB posts a blind of $0.05.
Hero raises to $0.50, 3 folds, CO raises to $2.20, 3 folds, Hero raises to $12.40