Opinions Please

Havent heard from babys dad since telling him Im pregnant. He made it clear he doesnt want it. We were never together just friends for the last 2 years. Im perfectly fine with being a single parent. I have amazing support through family and friends. I dont feel the need to stalk him out or force  anything, if he doesnt want to be involved its his loss and bad karma not mine. Thats the way i look at it. One of my friends suggested maybe sending his mom a facebook message and letting her know shes going to be a grandmom again. I know shes nice even though ive personally never met her. I really dont see a need to involve anyone from his side and i dont feel its my place. We have a lot of mutuals and someone is bound to put two and two together through word of mouth or social media. They can all be mad at him when/if they find out. I really dont care.  I have enough on my plate and dont feel the need to stir a pot. Do you think i should send a message or just leave it alone??

Thanks Mommas!