What’s going on?!

So after my decreased temps for 2 days, I assumed AF was on the way in so the hubs and I decided to go out for dinner and a couple drinks. AF normally shows up on the day it’s supposed to but every couple months it may be a day late but I don’t remember the last time it was 3 days early. Thought my chart looked good and things were promising but now I’m spotting/bleeding and based on what I read about implantation bleeding, I don’t think this is it. Our work schedules are tough so the sex like isn’t as active as we wish it was while trying to conceive but we do what we can. Any thoughts or insight would be greatly appreciated!!