West Virginia Wisconsin Wyoming. Search the City of Lincoln Park, public records using best found research sources online. This City zip code is 48146 with a total population of 38,144. Look up recorded information of Lincoln Park, including demographics and local economy.
Hard Stomach and Pregnancy â What are the Causes? Here are some of the causes for hard stomach during pregnancy: 1  Hardening of the abdomen during the 21st week is quite common because the growing uterus applies immense pressure on the stomach walls, which in turn results in a feeling of hardiness.
During pregnancy, there is great pressure on the two muscles that join at the mid-line at the front of the abdomen. Usually these muscles are surrounded by a strong tendon-like wall that holds them together. But the pressure placed on these muscles during pregnancy can cause them to become thin, like paper.