Please comment

I’ve been on the combination pill for around 3-4 years and I haven’t missed a pill this year but I occasionally take it late like 30 minutes or at most 2 hours late but for the most part I take it at 9:00pm on the dot. I know you have like a 12 hr window but I’m still anxious. I usually try to be safe with my S.O but it’s hard using condoms when I hate them. He normally just pulls out but I always end up being paranoid until my period comes. Can someone ease my anxiety? I’m scared I might be pregnant because I’ve been eating a lot more than usual and I’ve been nauseous but I’m not sure if it’s just from the pills. I know the only way to find out if I’m pregnant is from testing but my period isn’t due until a week so it would be great if I heard everyone’s experience on the pill. I just see so many women on here talk about how they have fallen pregnant on the pill and it scares me