Omaha Hi low trouble

Let Say in omaha hi low you hold Ah3h4d6h Preflop there are 7 limpers and you i call from the button (is this correct?). On the flop comes A37 with two spades, if there is a bet and several callers should i call?


What happens if the turn is another spade (8spades) do i still continue. I find that whenever i flop two pair i dont know what to do?


I hope you can help me out.

Thanks