32 weeks 4 days, Polyhydramnious. Amniotic Fluid. Help

Hi All, Do share with me some words. Ysterday went for my appointment. Im now 32weeks and my baby weight supposedly now 1.8 but sadly mine is 1.629 (almost 1.7). So, prof need me to come back for another ultrasound check tmr as my AF is more >29cm. Overall check baby is fine but baby leg slightly short. My umbilical cord is short segment with thickened Wharton’s jelly seen. What does it mean? Anyone have same experience? Please share with me. Im starting to feel anxious about this. Trying to relaxs abit but im just worried of my baby. Help