failed IVF cycle, age 43

I am 43 years old and had a failed IVF cycle. My AMF is .615.
I was on Luperon, menopur and follistim. I had 5 mature eggs and 4 fertilized. Two made it to day 5 which one was a day 5 fresh transfer. Positive pregnancy test on day 10 but then day 12 the HCG lowered and so was not a viable pregnancy. Should I do another cycle?