Looking for story and can't remember the author or title.

Hello and thank you for any help tracking this one down. From what I remember it was a about a group of girls who all one by one end up sleeping with and getting knocked up by the same guy. The final chapter was them revealing this fact to everyone at a major event.

Additional details: I believe the group of girls were cheer leaders. The story was from the woman's prospective and I believe switched between the woman but I'm only 50/50 on that one