y are you so sure your not pregnant???

sometimes depression can cause insomnia at nite but sleep or day ive had it sometimes u can have it and not realise u can ask ur doc about it and they sometimes give u a a number of questions to answer but i would take a pregnancy test to be on safe side and also get doc to run a blood test cause sometimes it dosent show up in urine cause your periods shouldnt just stop like that unless somethings wrong hope this has help