Like wtf

I had a very hard day yesterday with my 4 month old son he had shots. He fell asleep for a nap and woke up around 7:30/8 while I was in the tub so I told hubby to just being him to me and I’d go ahead and wash him while the water was warm. My MIL said I shouldn’t have done that and it wasn’t appropriate I didn’t think anything of it I was only trying to go ahead and get his bath done since I had just got in the tub and the water was warm