22+1 and already 1cm dilated

Mrs. A
Been experiencing severe cramps the last two days called the doctors they told me to come in so they could check for a UTI they did my lab work and sent me straight to labor and delivery where I'm being told I'm 1cm dilated with a short  cervix and I'm having contractions every 2-3 minutes!!!! Wth...I just thought it was cramps but now I'm extremely nervous for my baby girls!!!!!! I'm expecting di/di twins and baby A apparently thinks my cervix is a bouncy ball, any other moms experience this and what was the outcome???? Should I be concerned 😕 trying not to stress but it isn't all that easy. I have nothing prepared for babies!!!!!! FTM btw