Weight

I’m 15 weeks, when I first started going to the doctor I was 112 my first ultrasound was at 6 weeks and I weighed 112 still, around my 11 week appointment I weighed 119, I weighed today at home and I weigh 114. I’ve had two miscarriages in the past and I may be overthinking things but I can’t help but to think there’s something wrong. Has anyone else had this happen to them?