It is important to know how your child is developing in the womb during this time. Also, it is important to know about some of the risk factors associated with the 26th week of pregnancy. These risk factors or complications include edema, preeclampsia, gestational diabetes, iron deficiency anemia, and pre term labor. Additionally, you should understand that mild to severe back pain is a normal part of pregnancy. While there are ways to help with the pain, there aren't too many ways to prevent it.