The Pill (2011)

The film starts with Mindy and Fred ending up in bed together. In the morning Fred is worried that they had unprotected sex during the night and convinces Mindy to get a "morning after pill". However it turns out that it must be followed by a second pill 12 hours later. To make sure that the care free Mindy takes the second pill Fred decides to spend the day with her. It turns out to be an eventful day. Fred learns to know Mindy better while he tries to sort out some other personal challenges.