I lost my virginity today. and today is my 2nd day of period, and had sex without protection, are there any chances of me being pregnant?

Small but not zero: Your risks so early in the cycle are small so you are probably ok, but i suggest the morning after pill as a precaution and then keep your fingers crossed. Pregnancy is not the only risk you are taking with unprotected sex and it is important that you take appropriate precautions in the future.

Plan B : The chances of getting pregnant on the second day of your period are extremely unlikely. That being said you should take plan b. It is over-the-counter and decreases the risk of pregnancy. It needs to be taken within 72 hours of unprotected intercourse to be effective. Go to the store and buy it today. Now that you are sexually active you should also see a doctor and discuss long-term birth-control options.