Thanks for all your replies.
I am going to see my midwife/doctor on the 7th so i will talk to her about it. I really do want to bf, and i am hoping this baby is the one. My DF works 2 jobs but my SIL works only 2 days a week and she lives with us so i am hoping she will get up to DS if i am exhausted.... If not im sure she will send me back to bed once she is up. Also i am putting my DS into childcare 2 days a week before baby is born (well i am hoping he is on the waiting list he doesnt actually turn 2 till 29.10) so when he is at school i can sleep when baby is sleeping. So im sure it will all work out fine. Also when i had my DD i had PND, so DF and i were worried i would get it again with DS, but no, i went well. Its amazing what support does for you, as i am sure i can get through the first few weeks of bf, if all goes well, he/she sucks properley, no cracked nipples (although you can get nipple sheilds) and stuff. Thankyou again.
Jen