If cisgender men could get pregnant, there'd either be a cure for morning sickness, we'd grow babies in artificial wombs, or the human race would die off. Why? Oh, because morning sickness is the worst. While most pregnant people experience it to a certain extent, it's often dismissed as a "bad hangover." Excuse me, but hangovers don't last for months at a time. So yes, even the most loving partners don't really "get" morning sickness, and occasionally they'll say a comment or two that you really don't need to hear when you're suffering from morning sickness.
My morning sickness was horrible, because it was really an "all day" sickness. I felt like I was both starving and too nauseated to eat. Some days I couldn't keep anything down, and on other days I could only keep down really gross and weird combinations of foods, like salt and vinegar potato chips, Handi-snacks, egg sandwiches, and sour patch kids. I wasn't really hitting the bottom of the food pyramid, my friends.
For the most part, my partner was loving, supportive, and kind during my pregnancy, and especially when I was sick. He brought me foods I requested and only occasionally poked fun at my "pregnancy cravings." That said, there were more than a few times when he let a few comments slip that made me feel angry, sad, embarrassed, or frustrated. It can be pretty hard to hear anyone, let alone your partner, point out the vomit smell clinging to your hair, or the fact that you seem to have peed your pants. Sometimes I actually did need to call in sick to work, or lie on the bathroom floor all day, and I didn't appreciate getting flack for taking care of my pregnant self. Pregnancy is hard, and morning sickness was, for me, one of the worst parts.
So believe me when I say there are a few things no person with morning sickness should have to hear from her partner, including but certainly not limited to the following: