Cycle changed from 28 days to 25??

The past 3 months my cycle has been 25 days long. They’re cut short by a couple of days of spotting before my period fully kicks in. I want to start ttc soon and I’m panicking about my cycle being like this. Anyone have any experience with this or can give any advice? Feeling like it’s going to make it 10x harder to conceive than it already is 😩