If i started a pack late on my second month on bcp but doubled up. will it effect my 3rd mon w/ risk of preg? never missed a pill before. on 3rd pack

Oral contraceptives: Typically there is bleeding during the week of no pills or dummy pills. If this did not occur, I would use a backup method for the third pack. Consider setting an alarm to remind you to take your pill, taking the pill the same time every day linked to a meal or brushing your teeth, something you do every day.

Should be effective: If you only started one day late and then doubled up but were otherwise regular you should not worry.