"it was a heat of the moment thing and we went unprotected. not too smart, but it happens. took plan b one step less than an hour later. like you, i was anxious and jumped into reading reviews and began the waiting game. the second day i felt dizzy, nauseated, and sleepy, but it didn&#039;t kill me. for those wondering,i&#039;m 5&#039;3, 145 lbs, and never took birth control before. just relax, even if you don&#039;t feel it, this is working. easier said than done, i know. my period came a few days earlier than expected and heavier, but i&#039;ve never been so happy to see it!"