Hi: I think I may be able to help. I'm assuming your wife had no income in WA in 2017---(which would only come into play on your Federal return because WA has no state income tax!) Community property rules differ from state to state (and can be tricky---depending on what type of income and the itemizing vs. standard deduction rules) but none of this would seem to come into play in 2017 for you. As I understand, you weren't married until October and income prior to that is not community income.
So here's what I would do. Complete your Federal return as MFJ, with your combined incomes for 2017. Now go back into TurboTax and complete a "mock" MFS return for your wife and her CA income---which then will walk you through the CA return. (I hope you have the CD/Desktop version---I'm not a fan of the online version!) You didn't say, but I'm assuming you live in WA---which means you don't need to file a state return.
When you send in your wife's CA return, you attach your MFJ return to it because that is the actual return you are filing with the IRS.
Hope that helps in some small way. Good luck!
