Scared to announce ***Update***

I know this might sound weird to some and that some people won't be able to relate at all but really need some advice. please no judging.

so me and my boyfriend of almost 4 years are expecting a baby boy in July. I am 23 and my boyfriend is turning 25 in July. we haven't announced the pregnancy yet. only a few people know.

a bit of background: my mother cannot stand my boyfriends family due to various reasons. some I can fully understand. for about a year or so she didn't want anything to do with my boyfriend aswell. at the moment she sometimes seems like she loves him and other times she doesn't. alot of times she will hint that I should break up with him.

since im starting to show obviously now I need to tell her that im pregnant. I had a previous pregnancy that ended in a miscarriage about three years ago. when I told her that time she got furious and stopped speaking to me. only weeks after my miscarriage we started speaking again.

I am not sure how to go about telling her. if I should do it in person, via message or how to approach it.

on one occasion a couple of weeks ago she told me that she would never love a child that I have with my boyfriend as she cannot stand his family.

im scared that she will try and bring up my whole family against me and bad mouth me like she did the last time

any advice will be appreciated.

***Update***

so I finally told her via message. she reacted as I thought with anger.

she told me that I fucked everything up and that we done. then she blocked me on WhatsApp. but it's ok at least I wasn't the one to cut her out.

it doesn't even bother me. I am going to focus on my little family and the blessing im carrying.

thanks for all the advice I received