I have headaches , mild cramps , nausea , and pink and brownish discharge. could i be pregnant are is it from missing a week of my birth control pills?

Take pregnancy test: If you missed a week of your birth control pills, they will no longer be protecting you from unintended pregnancy. If your period is late this month, i recommend taking a home pregnancy test. If you frequently have trouble remembering to take your birth control pills, you also might consider talking to your doctor about using a different form of contraception.