Girl this was my sons first year after being home with me no daycare nothing.He was also and still is a mommy's boy. I wont lie you are going to cry and she might too,you will not want to leave but you will.Take your camera of course to take a few pictures.It will seem like the first day is going by so slow and you will want to keep busy and since you will have a new addition before this you will be.Afeter a week you and she may be use to this adjustment but it could take a month I have never seen it take longer then that when I was a teacher in daycares.
She will get independent but not as much as you might want.My son pick his own clothes out now for the next day.He loves to tell us about the day and he is doing great he loves his to teachers.If you know who the teachers will be and youknow anyone who has had them before ask them about the teachers of course.
Also be ready to be called teacher sometimes in the begining.I found it to make me nuts just because he was calling them teacher instead of but name.
Also I recommend getting her use to the change durning the summer months.Get her use to the schedule,We did this ist helped alot,Also if you can take her to play on the play ground as well so she sees the fun in it too.Take a tour of the school talk with the counslor.This things helped me.
You may hate this and she may to but it will be great her going to school you will get the hours to bound with your baby and she will more then likey enjoy getting out of the house to a place that will be about her.
My daughter and I have got a lot closer then ever she is two and loves that she gets the one on one time.
Also so you still get one on one time with her when you can just you and her go out for ice cream or something so she sees you still think about he durning the day.Take turns with your hubby with the pick up as well so he still gets the one one one with both of them,Leave baby with him sometimes.My husband does this on certain schedules he is in law inforcement so we have schedule issues.He loves this because he still feels he get bounding time too.
Also the school here has a policy durning the first month no parents were able to be there to make the adjustment easier on the kiddos,this helped but now I am a room mother,I try to attend everything and be part of all I can this helps too.
My son asks me everyday if I missed him and that he missed me.
I am sorry this was long I just wanted to share what I could
Good Luck and you will make it.