Symptoms of infertility?

[RigbyE]

I am curious to know wether or not there are actually any signs that may suggest infertility in a woman or if there are certain things that might affect her fertility?
One thing I am particularly curious about is persistent thrush.  

[Helen72]

Painful or irregular periods can be infertility signs.  Often times you need medical tests to diagnose infertility.  I needed a diagnostic surgery to figure out what was wrong.

[Diane1003]

At 32 I'd always been perfectly healthy which is why after the 2nd miscarriage (two cycles back to back) I lost it in my dr's office and said if there's a problem I want to know. I was referred on and after testing it was discovered I have a blood clotting issue where my blood is too thick.  I was told to take baby aspirin and now have a healthy son!  I have always donated blood so to be told I have a blood issue seemed odd - but - a little aspirin helped me carry a healthy pregnancy and have a healthy son!