He spilled outside and Just in case I took the pill about 15 minutes after

Anytime you have sex there is always some chance of getting pregnant. Since you did take the pill right after, you've at least decreased your chances of pregnancy. The only way to know for sure though will be to take a pregnancy test though.

Best odds, don't know how to put it in a percentage, best guess 5 percent chance or less.

Not a bad odds for pregnancy, not a good odds for other things.

Not sure what you mean by "spilled out"

Did a condom break ? You were not using that silly withdraw method.

When I mean spilled is semen came out, he wasn't near me , his boxer wasn't buttoned so it came out through the boxer and landed on me , I don't re call exactly where because it all happened so fast but it could have been just in between my legs

Sounds like your chances of pregnancy are even less then. At this point, I wouldn't stress over it.

Thank you. On Tuesday morning I got what I like to believe is my period. By Thursday it was pretty much gone but came back today , Sunday, very lightly again. Is it because of the pill?

Probably. The pill can mess your cycle up for a little while. Again, the only way to know for sure though will be to take a pregnancy test.

So even though I got my period it is best to take a pregnancy test?

Well, you seemed unsure that it was actually your period. If it were me, I would assume that I was not pregnant. But it wouldn't be right for me to tell you to assume that you're not pregnant, I don't know your body the way that you do.

Thank you, I took the pregnancy test and it came out negative