My parents also tended to fight quite a bit. I know it was definitely hard on me because the situation itself. I guess unfortunately that is ow some people handle the stress of it. I know my parents just needed different things in terms of comfort and weren’t necessarily on the same page all the time. I’m sure your parents love each other and are just scared which is making things hard. Hopefully they stop fighting like my parents did as they continue to learn about this process. I think everyone has a bit of an adjustment period and everyone changes even as soon as you find out. Hoping for the best for you and your family!