Was that when they started? Mine is similar probably 34wks but they seem nearly daily now (36+2). Obviously I googled & saw 1 out of about 10 things that said it’s bad

everything else said normal. I’ll ask the midwife on Thursday
It's not a bad thing. Google will say everything is a bad thing if you look enough.
I'd get them several times a day from about 30 weeks at least. Been the same with evsry pregnancy.
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As for telling people, I must have the unpopular opinion because I've never cared who's known

This time and last time, my sister had the kids so had to know anyway. And my Mum. I presume she'd have told my Aunt too and probably anyone else that would listen to her
I've never minded my MIL being told either as its just as much her grandchild as my Mums. And if anything went wrong, I'd want my partner to have the support of his Mum.
If anyone else was going to be sending messages then I'd just mute their chats or ignore them and my partner would just update my mum and his Mum periodically.
Anyone else if they did message, which i dont think they did, but would have just been ignored until we wanted to reply.