I am in a long distance relationship and we only have sex about once a month. Last month I messed up my pills a couple of times but took them the next day. I did get my period a little last month, then I was out of town when it was time to pick up my prescription so I started the next pack late thinking that I would just have my period longer, no big deal. I started my placebo week on Saturday and have not gotten my period yet, and I think the last time we had sex was right before or after i had my period, I cannot remember. We also use condoms every time just in case. Is there any chance I could be pregnant?