Short cervix


I was in L&D; 2 weeks ago due to cramping and the only reason they could think of was that my cervix was a little short (2.5cm) but since I have already given birth vaginally the docs were not too concerned.

I went and had a sono done last week and the tech said my cervix was measuring over 3cm and that was perfect.

Today I went and the sono tech said she got different measurements. Averaging 2.4cm. I was told to take it easy and I go back in another 2 weeks for another sono. Absolutely no sex.

Anyone else experiencing this?