 [ Symptoms ] first time taking birth control but period is late and unprotected sex am i pregnant  my period came july 4 first time taking the pill so my period is always a 28 day cycle on august 4 my period did not come and i had unprotected sex more than twice that day and for the rest of week i had unprotected sex and my period has not came yet is there a big possibility i am pregnant [ Disease ] hi what your about to read did you do this the effectiveness of most birth control pills is strongly affected by how consistently they are taken the effectiveness or side effects of birth control pills can be altered by taking them late or by not taking them at the same time each day therefore to get the highest effectiveness from birth control pills take them at the same time every day if you miss one of more pills refer to the manufacturer package insert that came with your pills in general for most pills the following should be followed if you have a 28 day pack and you missed any of the last 7 pills in the pack   do not worry about it except mircette where the last 7 pills do matter in a 28 day pack the last 7 pills are placebo or sugar pills these have no active ingredients the pills are just there to help you know when to start your new pack but make sure you start your new pack on time if you miss taking one or more pills except the last 7 pills in the 28 day pack you may not be protected from pregnancy   see more at <link>#sthash ejo0b3gz dpuf yes as you can see it was a gathered piece of information i found this a piece of help so at anytime did you miss a pill or two was your timing out are you now back taking your pills you missing your period could be from just the extra hormones in your body they can do things like missing a period but you should have just kept to the pattern of taken your bc pills but as long as you used condoms for the first 7 days and with not getting your period in the placebo week you should have been using condoms with not having a period with luck you may not be pregnant do hope this helps you good luck ps if like most of us and you have a mobile phone set the alarm on it for the time you want to take you bc pill its a winner