clomid round 2!

Gabrielle

pre-clomid, i was ovulating...just wayyy too early (CD 10-12). Then last month (my first round) I O'd on CD 14.....well now we are at round 2 (still 50mg, CD 4-8), it is CD17 and I still havent gotten a positive opk! This is my first month using digital opks, but i dont know if that really matters......should I be worried, or is it normal not to get a positive yet?!