Measured my belly at home...

Kimberlee • Mama x3 | 30 | Married ❤️

I am 23 weeks 2 days and I had my husband help measure my uterus this morning. From top to bottom is 8 1/2 inches, which is 21.59 cm. I know for instance if someone is 32 weeks, the top of their uterus down to their pelvic bone, should be 32 cm.

Is it normal for it to be off like that? I'm a little worried.