Did you actually fully miss the pills or did you take them later- but in your usage window? Your usage window is either 12 or 24 hours depending on what type of combined pill you take. 12 hour window means you can have 36 hours between dosages, and for 24 hour windows this points to 48 hours.
Also sex is not a tmi topic on this forum. No need to apologise. But please check these things become engaging in sex without condoms, as preventing is much more effective.