Can’t get a break

So I just recently had a baby boy a week ago. My bd hasn’t really been apart of the pregnancy and I didn’t put him on the birth certificate because of it. Today I went shopping for more of the baby stuff that I need to get for when my son comes home and I “bumped” into my bd’s mom. (I know she works there and had another employee call her to the front) Now my baby daddy is mad cuz I told his mom she has another grandson and she called him talking shit because he didn’t tell her himself. I know I crossed a line but I felt that my child should know some of his father’s side of the family even if his father doesn’t want to know him.

Sorry just needed to rant