6week(first trimester) feeling tired and exhausted. not waiting to do anything. is this normal and what things to avoid?

Prenatal care: The 1st step is to choose and Obgyn to guide you through the prenatal care process. There are lots of hormonal changes going on that can cause a variety of symptoms and changes. Basic testing needs to be done to determine that all is normal. Fatigue can be normal. It can also be a sign of thyroid disease, depression and others. Your doctor can evaluate you for these things.