Is it normal??

Charlotte • I am expecting! My due date is in February and this is my 1st pregnancy
I am in between 6-7 weeks, and I know I am hungry a lot more, but I have been eating healthier than I was.....but I have gained weight, to the point where my pants already don't fit. Is this normal, or should I talk to my doctor about losing the weight, or what?? Please give me your feedback