No problem
.
Oh, and also, if you were to overstay your visa, and then you wanted to visit the UK in the future with your husband and baby, you would not be allowed back in without applying for a visitor visa first, because you would have an illegal overstay on your immigration history.
In fact, if you were to overstay for more than 30 days, the visa application would be refused and you would not be able to come back to the UK.