For me it changed all the time, sometimes the thought of eggs would turn my stomach and sometimes it was meat etc..
PLUS in my 2nd month preg. I ate a banana a day for 3 days and on the 4th day I had THE WORST allergic reaction !! My whole body blew up and was sooo itchy it was unbearable for 5 whole days, I couldn't sleep and had to melt ice cubes all over just to get seconds of relief

So no bananas after that all through pregnancy too