I nursed through my entire last pregnancy and even while I was in labor. Everything went fine and I had no problems. Most women can nurse through pregnancy with no complications. Your milk may or may not dry up and after a while you'll have colostrum. I dried up around 8 wks and my colostrum came in around 23 weeks and my son kept nursing through it all. There is a sticky above that I will link to that has tons of info about nursing while pregnant. Good luck!