This is also covered in the Telegraph but I cannot access their article.
We have a similiar case in NZ, and I've put the links below. Scout had a baby girl just before Christmas. I am glad that everything went well for Scout and their daughter, but the denial of biological reality by Scout (especially in the Spinoff article) and the transgender parent in the Mail article is really sad. The media in NZ hasn't helped either by its decision to report Scout's story on Scout's own terms. In real life Dads don't get pregnant and have babies, at least human ones don't.
Other transgender parents in the UK have recorded themselves as the mother apparently, so it will be interesting to see where this goes.
www.dailymail.co.uk/news/article-6698303/Transgender-man-pregnant-IVF-battles-child-declared-motherless.html
thespinoff.co.nz/parenting/04-07-2018/im-pregnant-and-im-going-to-be-a-dad/
www.stuff.co.nz/life-style/parenting/baby/109558179/kiwi-dad-scout-barbourevans-gives-birth-to-daughter