Dogs acting out

Ok so we have 3 dogs and lately they have been acting out like crazy! They are doing things they never did before. They’re starting to have accidents in the house and even chewing things up when we’re not home. I have a feeling it’s because they can maybe sense a big change coming (baby) but it sucks! Is anyone else going through this and if so how are you handling it? Is there anything I can do for them to reduce their anxiety about a new baby? It’s just becoming so frustrating for us.