Cravings

So my last pregnancy I hated beef and pork.l and I ate nothing but chicken...this one is starting to get similar I just want chicken sandwiches with a tomato and pickles...my last pregnancy I gained all my weight at the end of my pregnancy(literally ) 22lbs at 35 weeks all at one time...and I want to make sure I don’t struggle with gaining the weight that doctors want but I’m not sure what I can do?i haven’t really been hungry and I feel that I going to chicken myself out by the time I’m even 20weeks is anyone else having the same pork and beef issue?