A very big congrats to you !!!! You have a lovely family and your are a very lucky woman to have so many blessings - I will admit to having BFP envy especially since your little one is so young :)
As for BF'ing while pregnant, I nursed my DS when pregnant with #2 but he was 22 months old so a lot older then your nursling. He did end up weaning when I was about 4 or 5 mnths along and he did tell me that there was no more milk in there LOL! You may or may not have this problem but I would keep an eye out for supply issues as your pregnancy progresses - again, especially since your babe is under a year. I have also heard that your milk might change in taste or supply might drop right away but this doesn't seem to be a problem that everyone has. Many women nurse through pregnancy with no issues at all and end up tandem nursing their babes. I would recommend you check out the Extended Breastfeeding and Breastfeeding boards on ivillage. They have some great information to give and may have some other advice or support to offer you.
Congrats again - H&H 9 months - now send us your baby dust please!Jasmine
Nursing a young one while pg will not affect the new baby. It will affect you and your nursling. Your body will use it's resources for the new baby first, then you and then what's left will be used to make milk. You will likely have a serious dip in supply and won't be able to continue nursing full time. As a rule nurslings under 12 months will need to supplement with formula. You can also try boosting your supply by drinking lots of water, oatmeal and getting as much sleep as you can. You can also try a product called "more milk two" or alternatively drink several cups of pregnancy tea each day which usually contains the necessary ingredients (red raspberry leaf, nettle, alfalfa).
You can check out tandem nursing articles at kellymom and read the book Adventures in Tandem Nursing for more info.
Congratulations on your pg!
Thanks for the advice and the links. I see my new obgyn tomorrow and will see what they say.
Congrats on your bfp!