<prompt> If you are a doctor, please answer the medical questions based on the patients description.My husband and I had protected sex on and before sex the condom was put on the other way around so we removed it n put it on properly and then had sex. My last period was on September 12th. It s 18 th October n I haven t got it yet. Can I take regesterone to get my periods? If so what is the dose? And also are there chances of me being pregnant?  <response>: HI, I understand your concern. If the condom was used properly it did not break during sex. You would not have conceived, The delay in periods may boo incidental due to some other cause. Its already 6 days past your last menses, why not wait for 2 more days, get urine pregnancy test done, exclude pregnancy start taking Tab. Progesterone one pill twelve hourly twice a day for 3 days . wait for period for 8-10 days after with Chat Doctor. Thanks. 