is it possible to be pregnant for a year? i had a one night stand in the middle of january 2012, no sex in Feb, got my period in Feb and no sex in march, got my period twice in March in the beginning and end. met my boyfriend in March and we started having sex in the beginning of april. I found out I was pregnant in may. My baby was born January of 2013. she looks like my boyfriend but at times like the one night stand. Wouldnt i have known i was pregnant for a year whether it be possible or not? Wouldn't the ultrasound technician been able to of seen that I was farther than what we thought if i was pregnant for a year? It is keeps running in my head. I need to know if its possible or just in my head?! I need all the information I can get about this. I really don't want to pay the $20 fee for a doctor to answer but I might just do it because they study about all that stuff. But please and thanks.