My line to aggressive?

[petvan]

In the 30+3 on PP last night, mid second hour, blinds 100/200, and I have 1.5k stack (m=5). I'm starting to look for spots to open up, and find A9o two off the button and decide immediately to push for the blinds assuming there wasn't big action before me. UTG+1 limps and has me covered, as do both blinds.

I still push, thinking I can get UTG+1 off of AJ, AQo, mid to low pockets etc. My M is low, but my stack still allows a 7x overbet, so I'm thinking I have FE.

Too aggressive? How worried should I be about UTG+1's limp? I'm thinking he has to put me on AQs+, 77-99+ and not a premium as I clearly don't want a flop, but likely aren't on a pure steal.

Thoughts?

Thanks

P