Cervix Funneling at 27w6d

Elena

So I just had my scan today to measure the baby. Baby is ay 29th percentile and at 2lbs 7oz. They dont seem to be worried since I am just 5'1 and hubby is 5'8. They found out that my cervix is now at 1.98cm long. They sent me to ER after the scan but the ER seemed to be not worried too and just sent me home although it is funneling already. I am not feeling unwell, any pressure, contraction or bleeding at this moment but I am scared. Is anyone here had this in any of their past pregnancy? How was it...? I mam a first time mom. Please help. Thank you