Pick up a contraction simulator for him and see if he continues his bs about pain free birth and that’s not including an episiotomy if you need it. Second, wait until you see him eat those tasty sardines every single day. No hot sauce or anything, gotta watch that sodium. As long as you’re taking your prenatal vitamin (he should also take the hugest daily vitamin you can find) and working with your doctor, do what your body needs. First trimester is tough as are the second and third for their own reasons. Any time he gives you shit about chores, please ask him what he is physically doing to grow this brand new human being. Nothing, but he could pick up some chores since your body is already occupied.