Maternity classes - alone or w my dad?

Yuta
My hubby has a weird work schedule and can only go to 2 out of the 4 maternity classes we are doing at the hospital.  I think I would feel pretty awkward being there by myself on the other 2 so I was thinking to invite my dad as he will be in the room w us during delivery.  But then I'm not sure if that will be more awkward lol.
What do you ladies think?  By myself or with my dad?