Birth control effectiveness?

I've been on Loestrin 24fe for 3 months now. I'm just finishing my last pack this week. I'm wondering about the effectiveness.

The first month, I messed up a few times as in I took the pill later than my schedules timing, maybe within 5 hours or so late.

The second month I was forced to skip two days because I was very sick and couldn't even hold down water. Then, on the placebos of that month, I switched from taking the pill in the morning, to taking it before bed.

The third month, I've been consistently taking it, but last Thursday I was 5 hours late because of being a volunteer firefighter, we had a fire and I couldn't take it til we got back.

I'm wondering if my chances would be way higher to get pregnant at this point because of still trying to become really regular on taking it.