[quote FannyCann]*Apparently there have been cases where a fertilised ovum has not been caught by the wiggly bits at the end of a fallopian tube and has fallen into the abdominal vault and gestated. The ovum can attach and a nascent placenta can develop outside of the uterus.
Of course, this is wildly fatal situation for a pregnant female to be in. I think the case wa resolved by surgery, but I bet women have died in the past from this.*
@Packingsoapandwater
Abdominal pregnancy is a rare and very dangerous complication. Basically the fertilised egg is happy to implant anywhere where there is a good blood supply if it hasn't made its way down the Fallopian tube as it should. Here are a couple of case reports that may interest you.
Interestingly, in the second case, which wasn't diagnosed until elective LSCS the placenta was left attached to the bowel, which I think is the recommended management as it would be so dangerous to try to detach it. I suppose it just reabsorbs into the body but I don't understand how it doesn't end up being a nasty collection of pus/fluid.
www.ncbi.nlm.nih.gov/pmc/articles/PMC5889830/
www.ncbi.nlm.nih.gov/pmc/articles/PMC3158531/[/quote]
Holy moley. 
I'm fascinated by pregnancy because I had a very high risk, medicalised experience and a good relationship with my obstetrician, who would tell me just how little obstetrics actually knew about the process.
One thing that has always struck me is how my hearing and sense of smell never reverted back to their pre-pregnancy state. I can smell a dog doing a poo in a park if I'm in the vicinity, and I can hear every movement of my three year old in bed, even though she's in a different room, but I can no longer hear some lower male vocal tones.
It's bizarre. And intriguing.