AIBU to not want to take best friends DD out with us ??

[macdoodle]

We are close friends, our DD's are 2 weeks apart in age, we both work (me part time, her full time and weekends), we help each other out with childcare a lot...
I am 37+2 weeks pregnant, and trying to spend some time with DD age 6 before LO arrives..
BF working this weekend...after DD activities this morning she asks if we can go see the Golden Compass....as BF is working and we usually take her DD out with us on weekend if she is...ask DD if she wants to go and ask her to come (they live opposite)...
She says NO just wants to go out the 2 of us....am torn between feeling guilty for leaving BF DD out and understanding how my DD feels as I also would prefer just to spend time with her ...
Also easier for me as my DD is calmer easier less fidgety demanding child who will happily sit through film whilst BF DD will be up and down to toilet asking for things and generally harder work
Oh dear what did I do what do panel think??

Take your d and enjoy time together before you are up to your ears in breastpads and nappies...the film is ejoyable I took my oldest 2 dds on Wednesday

i'd listen to your dd & not take your friend's dd this time. it sounds like you help her out a lot & if i were her i'd understand you wanting to spend time with your dd before the baby's born.

Go just with your DD and if asked explain you want some time just the two of you - perfectly reasonable.

You are perfectly justified in wanting to spend time on your own with your dd at any time and especially now. Lovely to do favours for a friend but not good for it to become taken for granted as being the norm....

On a totally side issue - thread here the other day said Golden Compass either waaaaayyy too boring or too gory for littlies....

I don't think you are being unreasonble to want to spend just you and your dd before your baby arrives.

I would explain to your friend that you want to spend some time with dd before baby arrives rather then saying dd doesn't want her dd to come IYSWIM.