Fast Weight gain

Jessica

This is my third pregnancy. My oldest is turning five this year and my youngest only turned one this year. I had a two month miscarriage December 30th and now I am pregnant again since March. I am still breastfeeding my second baby. I was surprised that my pregnancy test was positive so early and my stomach is huge already at only 4-5 weeks and I am already having morning sickness for two weeks now. Seems so early for everything...anyone else have symptoms earlier?