I am on the contraceptive, but somedays have taken them not on the exact time as every other day, is this a problem ? also my partner about 3 days ago we had unprotected sex and he ejaculated inside of me. experiencing bloating, should i be worried

Depends on pill type: If taking COMBINATION hormonal birth control pills properly all the time, and once in a while taking a pill 2 hours later than usual or earlier than usual, a woman's chances of getting pregnant don't change. In real life, she should not notice any difference. There is always a slight chance of getting pregnant, when a woman is using birth control pills and having sex.