AITA for saying no to my partner going away at last minute for a holiday?

I’m 28 weeks pregnant and freaking out with everything I still need to do to be prepared. The other night my partner got a phone call from a friend that his getting picked up and they’re all jumping on a plane. He starts packing. I ask the usual questions where you going? how long for ? Where you staying ? And who can we afford it? He has no answers just that it’s all paid for. I couldn’t say no I didn’t want to be that person.

We’re in the middle of painting the house and preparing for Bub. And completely broke. Anyway he leaves and I’m told he’ll be back in 5 days still no details on anything. We start arguing three messages and I finally I say I don’t agree with you going. And at this point he says if I come home It’s going to cause arguments for a long time. But I feel the same way.

I get it’s one last thing before the baby comes and everything’s paid. But I can’t help shake the feeling of being left with everything we’re in the middle of and feeling completely overwhelmed and alone and at the same time guilty for losing it at him.