Towards the end of my pregnancy I noticed more leakage, so I bought a nursing bra and pads before I delivered. (newkidscenter.com)
One of the most evident of all problems that you will see with diapers not being the right size or fit anymore for your baby or toddler is the presence of much more leakage. (babygearsguide.com)
Option # 1 (a single seam) is very functional and will do the trick but may be prone to slightly more leakage than Option # 2. (diaperjunction.com)