If lm always constipated can that mean l have a serious problem?lm using the patch} unprotected sex can it make me get pregnant?

Constipation: Constipation at age 18 is probably because of lack of proper hydration, and is not by itself serious, just uncomfortable. Start drinking more water often during the day. Occasional mild laxatives may assist while changing your liquid intake. The "patch" is not as reliable as oral contraceptives. As your healthcare provider for more information.