About 3 weeks ago me and my boyfriend had sex, I am on birth control but I am bad about taking it at the same time every day (I might take it an hr or 2 before or after the time that I am suppose to take it), he did not cum but I am terrified about getting pregnant so the next day (less than 24 hrs after it happened) I took plan b. The only problem is I accidentally mixed up the pills and took the one that you're suppose to take first second, and the one you're suppose to take second first, I also doubled up on my birth control for that day, like I said, I am terrified of getting pregnant. Is plan b still effective even though I took the pills in the wrong order? I know that my chances of getting of getting pregnant from precum are extremely low but they do exist, what are the chances with my circumstances?