I am almost 21 weeks and always exhausted. I barely make it through the work day, then I am in bed by 8, asleep by 9:30 and struggle to get out of bed in the morning. Is this normal? I am worried about anemia. I am a vegetarian and have been diagnosed with anemia in the past, before pregnancy, but none of my blood work has shown an iron deficiency. I am not sure when they last tested my iron levels, but I haven't had any blood work since the first trimester, so it's possible that I've developed anemia since then. I have been avoiding iron supplements because they cause constipation, but I may start taking them again.