How do I deal? Me and my best friend have been friends since high school, we both had kids?

around the same time and got married around the same time. I have never ever been jealous of her until last week when she told me that her and her husband have just bought a bran new BIG home in an new area that isnt close to me anymore. Her husband makes a bit more money than mine and since hearing that news I feel jealous and envious. I live in a 2 bedroom apt and dont drive, I am a stay home mom as is she...so its kinda unfair she gets a new home for her family and I cant have that. She brought me over to see the house and its amazing, and when I came back to my place I cried cause I wish I could have that for my kids...my husband is a janitor, hers is a pharmasist. How can I get over my jealousy????