Yes! Like you, I had a blighted ovum miscarriage at 8 weeks (it stopped growing at 5 weeks), I opted for a natural miscarriage in December 2012, and it took 3 weeks to complete, which was a hideous time with bad pain and big tissue passing over 3 days, followed by two weeks or so of heavy bleeding and lots of tears from me. I am 41 years old, and though the pregnancy hadn't been planned, it was very much wanted by me.
An internal ultrasound scan confirmed that my uterus was empty on 12th Dec, but I still had a positive pregnancy test for 3 more days, i.e. the hormones had not yet gone back to normal. On Dec 15th/16th, I had a negative pregnancy test, so the miscarriage was technically complete. But then was surprised to have a bleed from 21st Dec until Christmas Day, with more lumps of tissue coming out.
I started taking vitamins including Maca, Co-Q 10, and Royal Jelly to help my ageing eggs, and it turned out that I conceived again from one-time unprotected sex on 3rd January, without even knowing I was ovulating again - that's just 19 days after miscarriage completed (according to neg preg test), and just 10 days after the Christmas bleed which must've been some kind of period!
I was shocked to conceive so quickly, to say the least. And on the ultrasound scan, they found two corpus luteum - i.e. I'd even released 2 eggs from the same ovary in early Jan. Maybe that was the Maca! I've heard it's potent stuff!
I'm now 6 months pregnant with my first child, with a due date just after my 42nd birthday. It's been a bittersweet experience, as my partner, a commitment phobe who was secretly relieved by the December miscarriage, couldn't handle the 2nd pregnancy and ditched me and the little one... but this little baby was surely meant to be, so I am very happy with my little miracle so soon after the trauma of the miscarriage.