Based sa timing mo, may possibility talaga kasi usually ang fertile window ay around day 12-16 ng cycle, so kung nag-make love kayo on day 12, there's definitely a chance na she could get pregnant! Best way to know is to wait a few days after she misses her period tapos mag-take ng pregnancy test, para sure na, if gusto nyo ng peace of mind, pwede ring mag-consult sa doctor para sa proper guidance.