Looking for the dos and don’t of the first trimester of pregnancy? Wondering “What should I be doing 1st trimester?” and “What is most important in the first trimester?” Well you came to the right place. In this blog post we go over the what to expect when your expecting and first trimester things to do. Were compiled a list of first trimester must dos, and came up with this extensive first trimester survival guide, including a printable First trimester checklist pdf.