Getting fit while pregnant!

So, I wasnt a size 2 this time I got pregnant. I never fully got back into shape after having my son and I struggled back and forth with my weight and fitness. I'm currently 13 weeks and 3 days and I am having the hardest time with my self image and I'm just terrified that being a little over weight this time is going to effect my pregnancy negatively. So after doing a lot of reading and talking to my doctor I'm going to start my health journey today and I'm over excited about getting back into healthy habits! Has anyone else decided to go this route after getting pregnant?