I'm not sure what "af" means - some expression for menstrual bleeding, i"m guessing?
Sounds to me like you had a period - started taking the first week of pills following that. Stopped the pills after that week and you bled some? If that's so, then the bleeding is most likely because you've stopped taking the pills. With hormonal birth control, you pretty much get all kinds of wonky behavior with your cycle, when you quit the pills.
Understand that without taking the pill, you most likely be "due" for your period necessarily at the same time. It could take a good bit longer than you expect for your period to a. Come back and b. Become regular (if it ever does become regular). It could take a few months for your period to come back (if you were on the pill for a long time - more than a year or soo, it can take a while to have a period again).
Many women actually come off the pill and get some pretty irregular and/or long cycles. Don't count on having the same cycle length (days between your first day of one period to the first day of the next) now that you're off the pill. It will take some time, if varies with every woman but for those women i've talked with it takes months to roughly a year and a half, to get a regular, predictable cycle going.
If you're concerned you might be pregnant, then by all means, take a pregnancy test. But it's possible that your body is just trying to "get back into the swing of things" now that you're not taking artificial hormones.
So if you're trying to avoid pregnancy, use a barrier method (such as a condom) and if you're trying to get pregnant, then don't stress. It will probably take some time for your body to get back into it's own sync again without the pill. It could be months before you get a predictable period again.
