Terrified and I don’t know how to function.

I am 24 years old and 29 weeks pregnant with a daughter. I’m married to my best friend.. my mom passed away from lymphoma last December and my father is currently battling lymphoma. I’ve been having some persistent neck pain lately and realized some acorn sized lumps on either side of my neck under my jaw. I immediately made a doctors appointment. When I went in my doctor said it was my lymph nodes and they were severely inflamed. Normally smaller than a pea. My blood cell count showed no signs of infection.. and none of the other lymph nodes on my head/neck are swollen. So they are screening them for lymphoma.. I am terrified. I can’t stop thinking about leaving my daughter without a mother... I am stressed out of my mind to the point that I am making myself sick. I don’t want to leave my husband. I don’t want to leave my daughter. I’m so scared...

Any advice or.. really anything I would seriously appreciate. I’m so so so scared..