My girl always have her period 5 days late, we had sex 14 days after her previous period. She is now having her period 5 days late, can she be pregnant?

Possibly, not probab. How many days apart are her periods usually. If this one is the same number of days apart and other ways is acting like her normal period, then not being pregnant is most likely. Do a home pregnancy test 2-3 weeks after possible conception for proof.