Hi , 
How are you doing ?
You can definitely say " never say never"
If she has got pregnant , no matter it ended in baby or 
abortion, she can surely conceive again . Male's age is not significant. Best age for 
pregnancy for a female is 19-35yrs, but even after that  pregnancy do occur. Oldest age of pregnancy reported is 45 yrs, I have got pregnancy with treatment at 41 yrs age , that too twins !!
I don't see much worry about 
fibromyalgia .
Kindly see if the following checklist of investigations is done
Husband- 
Semen analysis at least 2-  done 4 weeks apart preferably in an 
infertility center ( examination done by andrologist), Blood sugars
Wife - Blood Sugars, 
Thyroid profile          
Ultrasound scans to evaluate Uterus , Ovaries & adnexa
          Confirm tubal patency- most important- Tube is the connection 
          between uterus & ovaries( the bridge where sperm meets the egg & 
          forms a baby) this is size of hair follicle & cannot be seen on scans.
           So check with HSG( Xray with dye), or SSG ( Scan with dye) or Laparoscopy
If all this done & found normal , nothing can stop a pregnancy with God's will
With advances of IVF - anyone can have babies at any age
Hope I have cleared your query, Do write back if any further queries
All the best
Dr.Balakrishnan