I've been vegan for 4 months

I've been vegan for 4 months and I'm 8 weeks pregnant and now I want chicken help me what do I do I'm stressing out I had to go vegan because my body don't make a certain amount of vitamins it help my body a lot even help me get pregnant but now all I thought think about is chicken and lobster and crabs and shrimp and cheese like chili cheese fries with extra cheese pastrami steak grilled onions and some jalapenos but I've been doing so good I haven't ate it the most I cheat on I had Top Ramen noodles please help me what should I eat to keep me on track this baby wants real food and I'm about to snap in cave in and give it to him please help me vegan eaters