Here's the thing, whenever you start messing around with the dosing of the pill, it will always result in some kind of weird bleeding or spotting, or in some cases it might cause a missed period. It all depends on the person.
That being said, what you should have done on Monday is just keep taking your pills as normal instead of ditching it all together, particularly since you're having unprotected sex and he's finishing inside you every time. It's possible you could get pregnant if you stopped taking it and didn't use any protection after Monday. All you can really do at this point is wait and see what happens with your next period next month.
If it happens again that you missed a pill and realized it too late, just keep taking your pill as usual because missing one out of the entire pack isn't going to make that big of a difference. But stopping your pill entirely was not the right move and could've possibly lead to you getting pregnant if you kept having unprotected sex afterwards and didn't start using something else for protection.