I wasn't able to nurse while pregnant, my supply took too big of a hit and I had to stop. Be sure to mention it to your doctor and go with the advice.
Totally OK I nursed my first born all the way through my first pregnancy and continued to tandem nurse him until he was two and a half and his little brother was 7 months. It was tough at times but I felt like it was totally worth it because it gave them a special bonding time too. It was also nice to still have special mommy one on one time with my older son, it helped him get over his jealousy pretty quickly.
Yes it is. As long as there are no complications with regards to your pregnancy. As long as your pregnancy isn't complicated. I am currently 7mos pregnant and still breastfeeding my daughter who's almost 3y/o.
It's fine... but my son weaned himself at 18 months when I was 3 months pregnant because my breast milk turned salty :(