10 fingers 10 toes...

I'm struggling... I am a type 1 diabetic and saw the high risk Dr this week. I am 18 weeks but they thought o was further along based on my lmp so we did the anatomy ultra sound.... I started excited... I love seeing my sweet little man dance around and boy was he dancing! not very cooperative at all while trying to measuring everyrhing... the Dr comes in after and slams with not one but a few things concerning him...suspected dandy walker malformation... bright bowel, I forgot the medical term....and my sweet boys right hand seems to have stopped developing before he developed fingers.... I keep getting hit with waves of shock. I have to go next week for another ultrasound and an amniocentesis to confirm or rule out the cause for the first 2 things... he did say it was possible he was just not able to get a good angle and everything with his brain will be fine... so best case were looking at the hand deformity... I'm mostly posting because I just ocan't get my brain wrapped around the thought that my baby might have any sort of challenges....not knowing is terrifying but aside from being nervous about the test itseld... I'm scares that the results will be something serious...