I didn't realize you were expecting...congrats!
I picked up knitting about two weeks before I found out I was pregnant with my second child. The "24/7" sickness got to be too much and I gave it up for six months or so. My husband said "You're never knitting again, are you?"
Guess that says something about my perserverance. (No, I can't spell.) But honestly, I couldn't bear to do something I liked while I was so sick...it would have ruined it for the rest of my life. In fact, I still have the last yarn I was working with when I temporarily gave up knitting, because when I look at it now, I honestly get nauseous. I sympathize!!! I say don't ruin it, you can knit later.
Baby will love it when s/he has the coolest booties on the block!