The only way to prevent pregnancy 100% is to abstain from sex. Kahit na anong contraceptives o pag-iingat, may nabubuntis pa rin. Refrain from doing it lalo na minor ka pa and not ready for the responsibility. Sex is a gift from GOD for married couples. Mas maeenjoy mo kapag walang stress o pag-aalinlangan. But now na may experience ka na, it will be harder to control pero walang imposible sa Diyos. PRAY ka lang. Sabi ni JESUS kay Mary Magdalene, hindi nya kinocondemn sya pero sinabihan sya na humayo at wag nang magkasala. If you need more advice, search mo sa fb ang page ng LIFTING CHRIST. Magmessage ka dun, sigurado may makakatulong sayo.