Advice needed for coming out

I'm a sophomore in college and this past year I met the love of my life. Neither of us considered ourselves lesbian or bi before, but once we kissed for the first time it was hard to ignore. We started dating officially about 6 months ago. We've told a few of our close friends but don't know how to tell our parents. (Also I'm super new at this, I haven't joined any LGBTQA groups or anything so I don't really have much of a support system.)We both grew up in very Christian, sheltered homes. I think her parents will be more okay with it than mine, but we are unsure of when to tell them. We feel like we already missed our window since we are 6 months in.Next year we are moving into an apartment together and both of our families just think we are the best of friends. We also already have a cat together so we were kind of hoping that our parents would figure it out on their own. Our fear is that since both sets of parents signed our lease they are going to be very upset when they find out that we are dating and living together. (Although we have intentions of getting married within the next year.) We don't know what to expect but we think they would try to get us out of our contracts for the apartment. Do we just ride it out and keep dropping hints or should we explicitly tell them?Any and all advice is appreciated! I know I kind of dug myself into a hole here ❤️