Given the intimate nature of surrogacy, you'd think it would be fairly common for the experience to be shared within families -- for sisters to give birth for sisters, for example. But, for whatever reason, it's actually far more common for couples to use strangers as surrogates. Not so for Jo and Paul Coomb, a British couple who had gone through 10 rounds of in vitro fertilization and two miscarriages over 10 years of trying to conceive. Their sister-in-law, Caroline Jones, offered to carry a baby for them -- and after one ectopic pregnancy that used up the last of the frozen embryos from the IVF cycles, Caroline got pregnant using her own eggs and Paul's sperm. The Coombs's son, Charlie, was born on March 30, 2009.