Bad mom mistake

We just bought some milk on 8/4 and we didn’t notice the dates. One expired at a later date and the other expired on 8/5 I barely opened that one today had gave my 18 month old 2 8oz bottles of it!! I feel so bad I didn’t even notice. Will he be okay? It’s not chunky, it smells a little sour but I feel awful about the whole thing 😭