You could. I believe there is a genetic factor, but I'm too tired to think. It doesn't automatically mean you will have twins, but there is a heightened chance, I believe.

If the mother, which would be you, has a history of twins in the family then you're very likely to have twins, but I've also heard that it skips a generation so I'm not sure

I don't think there's anyway of telling. But I think I remember my biology teacher telling us that if one of your close family members was born a twin or has twins you have a higher chance of having them. 

There's always that possibility but there's no saying for sure.