laumiere- Don't worry too much. With both ds1 and ds2 I lost 5 lbs around this time in pregnancy. I didn't know why and just thought it was an act of kindness from God.
Wheely-- I did try to bf ds1, but I was induced at 38 weeks which I think he just wasn't ready for. He was healthy otherwise, but just did nothing but sleep for the first month of his life. I tried to bf him for 2 weeks, but just settled on formula as the only way he would eat is if I shoved a bottle in his mouth.
With ds2 it was very different. He came out and was a natural. I liked it and it was very easy for both of us.
Honestly though, they both have eczema, are tall for their age, skinny for their height, and are very clever. I don't know if I want to bf this baby, but probably will, as bfing is the one part of motherhood that I hate. I can't explain it, but I do.I look at it like a job, not an act of love. but then again exclusively bfing is a full time job in the beginning.