I parked it in the garage last night and it won't start today.

When I turn the ignition it almost tries to start and then I get a few clicking and almost like a weird electric pulse. I don't believe it is the battery as the radio and electric systems still seem to work. It did seem to struggle to start once over the weekend but seemed to be doing better the last few days. It's a 2015 Ford Fusion with about 70k on it.

I've got very limited car knowledge. Any ideas on what I can do....