Where is my period?

Hey guys.

So I was on cerelle (mini pill) for 5 years, came off and had my period with in 6 weeks, I was due to have my next period yesterday and nothing? I was always so regular before cerelle, whilst on it my periods stopped.

Since being off it, I haven't used any other contraception, I have been sexually active but we have avoided sex as in intercourse and tried to only foreplay (just as fun😎) but we have slipped up and had sex twice.. He didn't cum in me either time.

WHY IS MY PERIOD LATE?!