I'm 39, 3 year old son.
miscarriage March 2012 then had fertility tests which showed FSH of 16 and AMH of 1.5. Were advised donor eggs and not even to really attempt IVF as it would be very low chance of success (less than 5%).
I did a LOT of reading and research and started to take DHEA, self medicated at 75mg per day.
8 weeks later i got pregnant naturally - miracle baby.
Sadly this ended in a miscarriage at 8 week scan (even though had strong heartbeat at 7 weeks). I had of course stopped DHEA the second I found out I was pregnant (day 26) so I don't think this is the cause, I think it's just indicative of the problem I have with my eggs being few and poor quality.
Pretty devastated BUT if it's happened once against the odds, I feel positive it can happen again. Will go back on the DHEA as I do believe that this was part of the reason we conceived.