 [ Symptoms ] birth control period my husband and i were messing around on day 20 of my 28 pill pack some come got on me we are at a stand still with sex bc of my anxiety of getting pregnant my question is if i have what i consider a normal as scheduled period while on birth control day 3 of sugar pills do i need to worry about being pregnant from this incident do i need to worry at all i take my pill everyday and my husband is so irritated with me right now we do have two planned kids and i do not want anymore right now [ Disease ] hi when taken correctly birth control pills can be up to 99 effective in preventing pregnancy however women who are taking birth control pills do on rare occasions get pregnant when this happens it is most often because of something the women did or more likely did not do not because the pill itself somehow failed to work things like not taken the pill at the same time each day missing a day alcohol will lower its effect and some meds will also lower its effect for the first one use you mobile phone it has an alarm us it for your pill this way it goes of the same time each day use it ok if you think you may be pregnant just keep taken your bc pills see if you miss your period if you do then get a test done either an hpt or at your doctors but for you its just a waiting game till the end of your current cycle hope this has helped good luck