I had unprotected sex first day after my period i drank morning after pill ,the following day i also had unprotected sex but didn't drink morning after now im having light spotting what could it be?

The morning after medication alters the hormonal balance and can result in spotting. If you miss your period by 4-5 days, do a home pregnancy test. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex : https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines Get HPV vaccine.