We need bigger transportation

Ever since i bought my new 2009 toyota corolla i've been very happy with it but almost a year later my circumstances have changed and now i need something bigger because we had another baby so now wwe have 2 children. The corolla is just too small for 2 kids and a wife. I've been looking at a nissan pathfinder but i think it's too early right now since i havn't owned the toyota long enough to trade it in. I'll go to the toyota website to see if they can help me out before i go to nissan.