V, like others have said, grieving is a process and it hasn't been long at all for you. I remember after my dad died, I was driving past the Post Office and the man who was going in looked exactly like my Dad. I just lost it in the car that morning.
I hope your son does get to move in with you. Please Take Care.... and know that I think of you and how your doing often. Hugs to you and the girls.
Dawn