Bathing baby with only a shower

We’ve just recently moved into a new house and had the bathroom redone (the landlords decision) but she’s totally took out the bath and made a walk In shower instead, were expecting a little boy and I’m worried about bathing him with only a shower? Would I just fill up his own little bath and wash him there and when he’s bigger just wash him in the shower? Sorry it probably sounds daft I’m a first time mum