I think you just had a light period. It's happened to me before twice, and I wondered if maybe I could be pregnant as well, but I never was. This happens sometimes due to hormone changes, stress, or a number of other things, but it is normal. Expect to get your period again in a week or so.

If you were pregnant it would definitely be detected on home pregnancy tests at this point. Remember, all early pregnancy signs also unfortunately are signs of many different other things as well, so do not rely on them as an indicator of pregnancy. Also, when pregnancy is suspected, your body tends to trick you into thinking that you are for sure pregnant. Trust me, I know

Make sure you practice safe sex to prevent pregnancy and STDs in the future. Use condoms, birth control pills, or a combination of the two. You can get them free or at a very reduced price no matter your age at any Planned Parenthood center. Good luck hun!

your not pregnant