I was raised as a JW with my biological dad never having been one. When my dad got us one time (we had just began being JW's) I was about 10 and my sister was 7. It was her birthday and our family surprised us with a b-day party. (He always celebrated my 1/2 birthday with my sisters since mine is the day before x-mas) Well....the surprise was on them when I locked me and my sister in the bathroom crying because we did not want to displease Jehovah.
We see how the fear in the religion takes hold of adults...and it is even worse for kids.
Now my 8 year old is still in and instead of trampling on her "beliefs"(for now) when I have her around the holidays...I play by their rules. We have "I am glad you were born" cards and presents. We have "gift exchanges" for x-mas. Don't prove the JW's right....they say you will do anything to turn her from Jehovah. Just do all the loving things you want to do, and when she is grown and thinking for herself, she will see what you did for her.
My dad never tried to celebrate with us again....but he never stopped sending presents around the special times. Now I love him for it.
I know it is hard to be in this situation. Hang in there! ((((((((((((((((HUGS)))))))))))))))))))