Not sure if I should post pregnancy on Facebook?

So I haven’t conceived yet but we’ve been ttc for 4 months, and I’m in the tww right now, so I’m overthinking a lot. When I do get pregnant, I’m not sure if I should post the pregnancy on Facebook or not. My s/o has a crazy stalker ex girlfriend, he even had to get a restraining order on her. He deleted his Facebook because of her, but I still have mine. I’m not friends with anyone associated with her, but she’s created at least 10 different Facebook profiles to try to get info on me, so I continuously block them. I have everything private on my profile as well, but I’m still worried that she’ll find out about it if I post something. On the other hand, if I don’t post it then a lot of people won’t know about the pregnancy. Then I’ll have to do a fuck ton of explaining (about stuff that’s none of their business) for several different people. And if I do that then I’m sure there will be people that post about it or tag me in pictures, etc. Then if I don’t post, how many years am I going to have to keep it up? I’ll probably be judged by people for never talking about my kid on there, right? I don’t know what to do