How should I go about this?

Mo

My sons dad doesn’t really want anything to do with my son, and that’s okay. I would rather him not as well. However I met up with his mom and his mom and dad would like to be in his life. I’m due in 12 Days, I purchased a grandparents DNA test. How do I approach them? I have his mom on Facebook, should I wait until they reach out to me? Or should I reach out first? **edit his parents asked me for a dna test**