I started my period this morning, 2 days early. last week and a half have had sore breasts, tired, emotional, increased discharge. could i be pregnant?

Take a test: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. See doctor for infection testing for the discharge