I had swine flu about 5 (?) weeks ago, so would have been 31 weeks (around about). Totally freaked me out, but the midwife reassured me that as long as I was feeling normal with baby in there (kicks, no pain, etc), I just needed to make sure I got myself well and looked after myself, as the same would be good for baby.

Nothing at all interesting or life threatening for me to worry about.

Hope the same is true for your friend!