Missed two pills, nearly a week apart - risk of pregnancy!?

I started my latest pack of Microgynon on Thursday January 16th and I missed one pill (24hrs late, 48 hrs after last pill) on Thursday January 23rd, after seven days of consecutive use. I took two on Friday 24th as instructed. I then preceded to take my pills as normal.
When I came to take my pill the following Thursday (30th) I noticed that my Wednesday pill was still in the packet, but my Thursday pill was gone. Now, the most rational answer is that I just popped the wrong pill out of the packet and swapped them around, but worse case scenario is that I missed it.
I then had unprotected sex with my partner last night (Sunday 2nd Feb)
Given that the two missed pills were non-consecutive (and both taken no more than 24hrs late) I'm hoping that this wouldn't have triggered ovulation. I've taken EC just in case, but what's the likelihood I'll be pregnant?
There seems to be very little advice out there regarding what happens to your protection when you miss one pill one week, then one pill the next.