help me

I have been on the pill for about 5 months and decided to skip placebos for the first time. i’m about half way through the second pack and i’ve had a little bit of brown blood (hardly any at all) but I also had sex a few times this past week. is this normal either from skipping placebos? I know there is withdrawal bleeding and I was wondering if I will get my period this go around since I skipped my placebos. please help also was wondering if i was still protected well even though I skipped my placebos. I take my pill at the same time every day and haven’t missed a day the only time I was 2 hours late was like a week before I had sex and my pills just say take within four hours