Had sex few days before my period a month ago, got my period but it was different not as normal. now i'm having pregnancy symptoms could i be pregnant?

If the bleeding: wasn't an actual period then pregnancy is possible. If in doubt take a home pregnancy test. Take care.

Pregnancy: Ovulation usually occurs approximately 14 days prior to the next period. There is a possibility of pregnancy if one is having symptoms of pregnancy. Pregnancy tests are available over the counter in most drug stores and are reliable.