Hmmm, a little more info would help.
How long have you been trying to LD?
What induction method are you using?
Do you use Reality Checks?
Do you keep a dream journal?
etc.

If you have just started out (within the past 3 months) I don't think you have anything to worry about, some people just take longer to LD than others.
The fact that LD's are apparent in your non- lucid dreams suggests that your mind is thinking about it in your dreams and is very reassuring (you already have one foot in the door)
One thing I would suggest is to RC everytime you think about LD's, you should then be able to notice that if someone else is having an LD it must mean that you are.
Hope this helps