Weight gain in first trimester

I didn't have vomiting in my first trimester, definitely aversions and nausea, but the last couple of weeks I've been eating more and of course it's all been crap. I've gained at least 5 pounds and I'm 10w 5d. I'm just scared I'm going to gain too much weight in going forward. I'm hoping by the second trimester I can really start eating healthy again, I have to