Ok im only 17 i had intercourse 1 month ago, my period is not normal anyways and i have had light pinkish color when i wipe. s something wrong?

Check first...: Get pregnancy test first and foremost. Any new change in your period after intercourse should be checked with a pregnancy test first. Second it could also be an infection. For confirmation you need an exam so make sure you schedule a visit with your PCP or GYN provider.

Monitor cycles: Protect yourself with BC pills and condoms. If you miss an entire cycle- get a pregnancy test. No sex without protection: plain and simple.