This bathing suit worked well for my full pregnancy. I was a competitive swimmer as a kid and through high school, and I now swim on a masters swim team. I swim about 3 days/week for about 50 minutes (usually about 3000 yards each day). I'm 5'4", pre-pregnancy weight 127-130lbs. I typically wear a size 30. I initially wore a bigger size of a normal suit (size 34) in the beginning of my pregnancy, then started wearing this maternity suit (size small) at 22 weeks (weight 140-145lbs) and wore it through the end of my pregnancy at 39 weeks (weight 155-160lbs). I agree with the other reviews regarding the chest area being a bit big, particularly during the second trimester, although I grew into it by the end. It's not the most supportive, so I wore a two piece top underneath, which worked great. I was still swimming 3 days/week and about 2000-2500 yards each day by the end of pregnancy.The only reason for giving 4 stars instead of 5 is that the suit did not last very long. It only lasted 12 weeks, so I had to order another one for the final 6 weeks of my pregnancy.Overall, this was a good bathing suit for lap swimming during pregnancy, and I would buy this one again for future pregnancies.Note: I did not try any other maternity bathing suits, so I cannot compare to other brands.