TTC#1 - low progesterone

So me and my husband have been trying for 2.5 years. We have know been informed that my progesterone level is low. It is was originally 1 when they started. I was prescribed Clomid and know after 3 months of taking it i have had a blood test which shows im still not ovulating. Only at 3 where i should be at 20. :(

My gp has informed me next step is IVF but thats a 5 year waiting trip due to age. Can anyone recommend anything different to take for low progesterone.

All feedback welcome

Thanks