Is there anyone out there Trying to conceive for secoond time but not ovulating?
If so have you found out why?

There are many many reasons that women do not ovulate. Hormonal imbalances, blocked tubes, etc...

Only a doctor can examine you, do blood tests, hormonal workups and the like to give you an accurate picture of your personal situation.

Again, J_9 is correct. There are MANY reasons a woman might not ovulate at all or that it would be delayed, or just inconsistent. A doctor is the only one who can determine it... have you been to the doctor yet?