Hey there - the IRS has a very helpful tool out there to assist in understanding your tax liability and being prepared for end of year tax filing. Please keep in mind any time you have a change in income it is very useful to utilize this tool to help assist you on what changes you should make on your W4. The IRS estimator tool will assist you with not only your current job, but taking into account your tax situation as a whole. This would be useful for you and your husband to go through together and see what changes it recommends you doing for your W4. Below is the link to assist you.
https://www.irs.gov/individuals/tax-withholding-estimator