Is it safe to assume baby is head down at 29 weeks?

I more often feel tiny jabs just below my ribs or just above my belly button and when I push it to play with my baby, I often feel his extremities moving. But, I also feel a few strong jabs below my belly button every now and then. How do I know if what I'm feeling above my belly button are baby's feet or hands? I don't think I can feel a head above my belly button but I don't really push too hard on my belly.