<text>  She is approaching her 49th birthday and had previously vowed her 15th baby would be her last. But Britains most prolific surrogate mother is now hoping to have a 16th and possibly 17th child after two embryos were transferred into her womb at the weekend. They belong to a couple who only met Carole Horlock for the first time a few hours beforehand. Carole Horlock, 49, from Colchester, Essex, is Britains most prolific surrogate mother and is now hoping to have a 16th - and possibly 17th - baby . Miss Horlock with her 13th surrogate baby left and with baby number nine in 2004 right Baby number one in December 1995 - she became pregnant with her first child for another couple after reading a newspaper article about surrogacy . She said: Im just a womb theyve hired to help them achieve their dream of being parents. As far as Im concerned its their baby not mine. I know in my heart Ive made the right decision to approach a mum who is desperate to have a baby of her own, and Im confident that theyll be good parents. Miss Horlock, who lives in Colchester, Essex, with her partner of 16 years, Paul, offered her services after being dumped by another couple midway through a cycle of fertility drugs. She approached the new couple on an internet surrogacy forum last Monday and met them on Friday night, before having the IVF treatment on Saturday morning. It will take up to two weeks before doctors know if either of the embryos has successfully embedded and she is pregnant. She said: Some people may think that what Im doing is wrong, as Id only met the couple in the flesh just 12 hours before having the IVF, but I dont believe it is at all. Ideally, I would have spent more time getting to know them. There wouldnt normally be such a rush, but Id been having this treatment for another couple who pulled out of the surrogacy with no real reason, which has left me devastated. I didnt want to lose out on the chance to have another surrogate baby for a couple, as Im now 48 years old. And it seemed such a wasted opportunity when I could use my womb again to help others. Miss Horlock also boasted that the IVF clinicians told the couple, who havent been identified, that their surrogate had the best uterus in the world. Baby number five left was born in July 1999, followed by baby number six right in October 2000 . Miss Horlock pictured with her daughter, Megan, 21, she said having babies is addictive Baby number seven left was born in January 2002, followed by the arrival of baby eight right in April 2003 . She has two daughters of her own, Steffanie, 24, and Megan, 21, and has given birth to 13 other children as a surrogate mother including a set of twins and a set of triplets. She last gave birth in April 2013 to a boy weighing 9lb 14oz. At the time I said he was going to be my last, but having babies is addictive, she said yesterday. The thought I could be pregnant again is incredibly exciting its the beginning of a journey with the couple which culminates in a magical moment when I give birth. If one or both of the embryos implant into her wombs lining, the baby or babies will be born by caesarean section, as with her last two pregnancies. Miss Horlock, who also owns a 350,000, six-bedroom farmhouse in Bordeaux, said: Ill be 49 when I give birth, which is not so strange and well within the realms of getting pregnant naturally, let alone with IVF. I love being pregnant, although I hope it is just one this time. With two embryos there is a chance it could be twins. And I really dont want to contemplate triplets or quads at my age Ive done triplets once and that was enough! She followed the couples story on the surrogacy forum for several months and said her heart went out to them but that she was unable to help as she was already partnered with another couple. When that fell through, it was almost fate that she could step in although she did not even know how old the mother-to-be was before agreeing to carry her baby. The women spoke on the phone for up to six hours a day last week before meeting up in Athens where the fertility clinic is based on Friday night. 49-year-old Miss Horlock said: I love being pregnant, although I hope its just one this time Miss Horlock gave births to twins in February 1997 and triplets in March 2008 - she had other babies in March 1998, July 1999, October 2000, January 2002, April 2003, June 2004 and April 2013 . Miss Horlock said the meeting was incredibly emotional. And after a steak dinner, they agreed to go ahead. The embryos which are biologically the couples were put into Miss Horlocks womb on Saturday, and she flew home last night. It is almost exactly 20 years since she became pregnant with her first child for another couple after reading a newspaper article about surrogacy. She went on to have twins in February 1997, triplets in March 2008 and other babies in March 1998, July 1999, October 2000, January 2002, April 2003, June 2004 and April 2013. For each pregnancy, she is paid expenses of between 7,000 and 15,000. If she becomes pregnant this time, she plans to hand the baby straight to the couple after the birth. They will then apply for a parental order the first stage in them becoming its legal parents. I will waive all my legal rights to the child, said Miss Horlock. 