went for first prenatal visit doc said uterus felt like 8 weeks but ultrasound shows 4 1/2 to 5 go back next week for another ultrasound....should i be worried?

she didnt say anything about fibroids....she told me not to stress but its hard not to

Hi,
What did your obstetrician have to say about this? Did the ultrasound show the presence of uterine fibroids? Estrogen tends to stimulate the growth of fibroids in many cases. During the first trimester of pregnancy, up to 30% of fibroids will enlarge and then shrink after the birth. That may explain why your uterus feels larger.
Maryann