Buy first home or first investment property

So my fiance and I are torn right now. We want to start investing in RE, but we also need a home. We currently live in a small 3 bed apartment with our 3 kids, paying $1100 a month, we really need more space. Or we could buy a home, and our mortgage would be around $950-$1000. Should we buy a home, or wait it out and buy our first investment property? 


Opinions?