Last pregnancy and this pregnancy question..

Last pregnancy i had twins, made it to 27w4d and delivered 2 handsome boys.

They are currently healthy and growing and now 5m, almost 6m on the 11th.

I started showing with them early, around 10 weeks, and felt movements around 13 weeks, so everything happened quick.

Im currently pregnant with one baby and im 14w2d, and im not showing, im not feeling movements or anything.

Now, my question is.. Could this be due to me having twins in the past and my uterus is "stretched"? (me not showing)

Im 5'4 and 106 pounds, so im not "big" so that cant be my reasoning for not showing.