Been on BC for 2 years now .. After my placebo pills in Tri sprintec I forgot to start my new pack for 3 days so I waited until Sunday to start it . So I had been off my birth control for 1 week . Had sex with my husband after 2 days of starting new pack . I'm now on week 2 of the pack and just nervous that I messed up and ovulated and am now pregnant . I'm normally good about taking my pills but the week I missed was just a hectic week and I forgot to bring them with me .