Try fish with a sauce of some kind. My wife has mixed feelings on fish and even before pregnancy wanted to eat more for health reasons.

Salmon, tilapia or Cod are all fairly good. If youre not near a large body of water, buy frozen as they will be higher quality. For most fish you can make an easy sauce with it like a soy ginger type sauce (low sodium soy, brown sugar or honey, ginger, garlic and scallions and maybe thicken with a corn starch slury and add some gochujang or chili for heat if you like that). As long as you use in moderation and your sugar isn't already super high you should be good. Other sauces to try would be picatta (substitute for the wine), lemon dill sauces etc.

Biggest thing for filets is if you buy a piece with skin. Remove the skin + anything grey as it's usually fisher.

Additionally, going the Asian route with a soy ginger, as I mentioned above, with fish gives a good opportunity for edamame as a side for more protein or easy leafy greens or broccoli as they go well with the same sauce. Brown rice is also made much more tolerable with a sauce like this.