I was birth control but had been taking antibiotics

Hi,
Welcome to ehealthforum,
Your symptoms (spotting, increased tiredness, emotional/mood changes, sore breasts, dizziness, nausea, increased vaginal discharge) could suggest possibility of pregnancy (especially if you were sexually active without protection during your ovulation time/fertile days). Antibiotic use can also affect the efficacy of your birth control. If pregnancy is suspected, look out for development of any new symptoms suggestive of pregnancy. Wait and watch for your next periods. If you did not get your periods within 10 days of expected period dates, or if you develop any new symptoms, or if you suspect chances of pregnancy, you should consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Be in regular follow-up and monitoring of your treating gynecologist and report any unusual/abnormal/new symptoms immediately. Take adequate rest. Drink plenty of water. Maintain healthy diet and lifestyle.
Take care.