Yes but you do need to report ALL your income on your tax return, whether you file Joint or separate. You can't choose not to file it or to wait until next year. You have to report it on your 2017 return. The IRS gets copies of all the W2s from the employers and will be looking for it on your return or they will send you a letter asking for it and for more tax.
Why do you want to wait to file it? If you missed reporting something then later you will have to do an AMENDED return for this year and that is a hassle. So enter everything and be done with it now.
You have to report all your income no matter how small, even $1 of bank interest you don't get a 1099Int for.
