well we got rid of lots of our stuff after ds4 as we thought we were done, we then changed our minds!
having a girl is fab actually, but any baby would be fab, when we decided to have no 5 we totally assumed it would be a boy, so when they said girl at the 20wk scan we didnt believe them and had a boys name picked out! tbh it doesnt as yet make much difference, other than the fact that i have gone slightly mad with girls clothes, not pink as i dont like pink but lots of dresses with matching knickers int he summer and pinafores with tights now its colder, i love dressing her, its like having a real life doll
the boy sdote on her and love her to bits, i dont know how it will change the dynamic as they get older, but they are very protective of her at the moment :)
she doesnt have any 'girls' toys yet, but we alreayd have a toy cooker and doll and pushchair etc and my ds3 loves all things pink and purple and fairies and tinkerbell, so he will have someone to share that with :)
with regards to your job you need to find out where you stand legally but i dont think it should affect that? you dont have to tell them for a while yet nad you should be entitled to maternity pay and leave etc?
really it is fine, i dont think it actually gets much harder once you have three, its extra laundry but i bet yo uhave loads anyway with 3 boys, so you probably wont notice! your youngest one is young enough that you havent forgotten all the baby stuff yet so its not like going back and having to start all over again from that point of view.
your boys are old enough to enjoy you being preg, to be involved in the pregnancy and to enjoy and help out once baby arrives, my 12yr old was at dd's birth! he was 11 at the time and he cut the cord and it is a veyr special memory for him :) they all play with her, carry her around, talk to her, sing to her and really enjoy her most of the time. she has fitted in just fine with our family and its routines etc, i think subsequent babies have to to a certain extent!
keep talking on here and let us know how you are getting on, there is another thread in larger families that is REALLY good and very positive, i will see if i can find it and post you a link xxx