Oh Lauren, you poor girl. As if the whole breast cancer thing isn't enough to deal with, being pregnant at the same time - what a stressful situation to be in! My heart goes out to you.
I guess if the doctors are telling you that chemo is okay when you're pregnant then it must be. But I can certainly understand your reservations. I think what I would ask the doctors if I was in your situation is whether you could postpone the chemo another 16 weeks, have the baby delivered early at 32 weeks and then have your chemo. I suppose there would be risks for you in postponing the treatment and for the baby in being delivered early. But in doing that you could avoid exposing the baby to the chemo. I don't have any medical expertise so I don't know whether that would be possible or advisable but I guess you could ask.
Good luck Lauren. It's a tough situation you're in. I hope it all works out for you and that you have a gorgeous healthy baby and a long and healthy life. Thinking of you. Janet. :)