There have been a few posters (4 i can think of but dont want to name names) on the green board and pink board too with failed DE cycles who then turned to surrogacy because they couldn't take it anymore. Their surrogacy attempts were big failures, then they went on to have success with their own bodies. All had good pregnancies and healthy babies, I also think all were full term (not sure, 1 may have been 36 weeks or so, not quite term but healthy and big).
In fact, the woman who started the surrogacy board here ended up deciding not to proceed with it after all, then got pg with multiples on her very next transfer. ALL of the above were thoroughly and completely disgusted with TTC before eventually having success with their own uteruses (uteri?)