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If you have been very regular with your BCP's, without missing them, then you do not need to worry about pregnancy. It does not matter if you have taken them within 1-3 hours time from the usual time. Try to take them everyday at a similar time to have maximum benefit.
Since you also use other forms of protection, the chances of pregnancy gets rules out.
BCP's work by suppressing the ovulation (egg release), so , if you have been regular on them, there will not be any egg present to get fertilized even if accidental sperm enters(with fingering, foreplay, pre-cum etc).
Be regular on your BCP, and look out for any abnormal symptoms. If found, report to your gynecologist/healthcare provider before starting the new pack to look for any other underlying problem for your symptoms.
All the best. Take care.