"had unprotected sex the day after my period ended. took next choice one step about 2.5 days later. experienced a little nausea the next day and fatigue. five days after i took next choice i started heavy bleeding for a day and light spotting for a few more. i am currently 2 days late for my period but i took a test and it was negative. fingers crossed that i&#039;m just going to get my period late."