You do not state what income you had after moving to the UK (eg interest, dividends, capital gains).
If you had such things, your husband's share would arguably be "resourced" as foreign source on your US return so he can claim credit for UK tax. Your share would be resourced only if you will not be claiming the remittance basis in the UK - ie if the UK will be taxing worldwide income. [Your husbnd is domiciled within the UK while you are not.]
You doubtless have a part-year State return to file.
Beyond that, your US returns would be similar to before, worldwide income, TD F90-22.1 if you qualify, refundable child credits if you qualify etc.
If you have US investment income you will have to remember to report this on UK tax returns as well.