i really don't know if there is a certain time frame ur supposed to follow. i mean if you for sure feel it than say it. me, i would never say it to someone i was only with for like a month or two. we were just talking about this at work the other day. i'm sure there are special circumstances, like you started dating a good friend and stuff. but for me unless there is a circumstance i can't see saying it that early. but that's just me. i have found that those 3 words usually enter the picture somewhere around 6 months. by then i usually know for sure. but its all up to you, just be sure of how you feel. b/c it's something that you really can't take back once it's out there.