Going through a bump with the BF

Maggen

So I’m currently 21 weeks pregnant I find out the sex tomorrow ! ( so excited ) I have not told all my family or friends and I have no announced it on social media. I would like to announce it tomorrow when I find out but my boyfriend and me got into an argument because he doesn’t want social media finding out ( he barely posts anything & mainly uses Instagram to keep up with his sports pages ) but I feel like I should be able to post my child and he’s saying I’m not being considerate of his wishes on not posting it. But keep in mind my entire family lives in Florida and I live in New York so I would love for my extended family to know since they never see me....should I post anyways and just not tag him? But even if I do that people do know we are together and it’s most likely his child. Ugh help ?!?!