I switched birth control pills started last mon had unprotected sex last weekend and forgot to take my birth control on sat and mon. am i covered?

Probably: If you missed a pill, did you take two the next day? If you did, you are probably fine. If you usually do not forget to take your daily pill, then pills are still a good method for you. If you are continuously forgetting each month, you should consider another contraceptive method where daily remembering isn't required. There are a number of good options.