Five year old struggling with the idea of new baby?

[readyforroundtwo]

Hi there,
Just after some advice really.

My son age 5 has always been a really well behaved loving little boy. He's well mannered, mostly does as he's told and we've never had any issues with his behaviour before.

I'm 21 weeks pregnant and whilst he seems excited to be having a baby brother, I feel as though his behaviour to me in particular has changed within the last month or two.
I'm pretty certain its not me being sensitive because my partner and other family members have picked up on it as well.
He now back chats me a lot, is very dismissive of me in general, doesn't want to really even sit next to me. Tonight I was brushing his teeth and he had a stroppy face on and I asked him what the matter was and he said 'you are what's the matter'.
It's like this every day at the moment, but he's not like this with anyone else. He's completely his normal self with others, including my partner and the only thing I can think of is because I'm noticeably pregnant and maybe he's anxious about impending changes.

I'm sure this will all pass but I can't help but feel a little hurt by it. Of course my partner says it's not nice to be mean to mummy etc. and when he's been really rude to me there are consequences but it just seems to be like this everyday.

Has anyone else experienced this?

Thank you

Sorry you've got this going on. I don't have any advice but in the same boat.
We have been experiencing big changes in our 7yr old DS since I was around 20weeks (now 32wks). He has been very easy to parent until the past few months.

He is directing his awful behaviour at his little sister, whilst also being cheeky, moody and difficult with DH and I. It's exhausting! He has also developed an intense sensitivity to clothes and finds everything uncomfortable. It results in major tantrums and is so hard to deal with.

I think he is excited about the baby too but may be anxious underneath it all? This teamed with the pandemic may be causing all the upset?

I'm aiming to be super calm and present this week - it's so hard though when we are all cooped up 24/7.

Hope things improve for your family soon and congratulations on the pregnancy!

Thanks for your reply @NeonFlamingos!

I guess this is all just normal behaviour and I also need to remind myself that his whole routine is flipped upside down what with covid and lockdown. I

I will try and speak with him today just to check in and make sure he knows we are here for him.
I hope things also improve with your son as well