I had unprotected sex 03/21took day after pill 03/23and had unprotected sex 03/24. week later had brown spotting for 7 days then filled one tamp. preg?

Playing w/ fate?: You don't say if you desire/dread/don't care if you become pregnant. Hard to believe it doesn't matter, but i'd say you are throwing dice. If you want to know, do a test. If you want to avoid pregnancy - use protection. Condoms will also protect from stds and that can be very important! save the day-after for emergencies. Best!