Was contraceptive protection maintained if I took Vibin pills with a 1.5-2 hour interval?

He has been taking Vibin birth control pills for over a year. However, last week 5 days in a row I took tablets on average 1.5h / 2 h later, i.e. I generally take tablets at 11, but in the following days I took them at 12.30, then after 11, on the next day at 13 etc And so for a period of 5 dbi. In this case, could the contraceptive pill have weakened their effect? I will add that the intercourse took place without an elastic band, but the partner did not end up in me.