Disappointing, though decently researched for the most part. The writing is full of "may have"s which are probably intended to provide richer context, but mostly cloud the actual facts. There are also a lot of "would have been"s which I assume are intended to highlight statements that veer closer to speculation than solid fact, but end up conveying a strange distance and a lack of confidence on the author's part. These are particularly common in the early chapters, which feature frequent tangents to stretch out the available facts.
This meandering is prominent throughout the whole book; effective in some cases, but often frustrating. There are times when someone is mid-labour and Licence strays into a pages long discussion about beds or a book from a hundred years after the birth in question. It can be quite difficult to keep track of the date as a result. The chapters themselves follow chronological order, but the contents of each chapter tend to weeble wobble all around the timeline.
The chapters on Elizabeth of York and Catherine d'Aragon in particular suffer from a lack of source materials. Between the two they had the most pregnancies and the chapters are clearly the product of a lot of research, but there just doesn't seem to have been as much recorded detail. This makes sense, given that Elizabeth provided an heir right off the bat while her son's increasing desire for an heir and his reaction to the lack of one must have created a greater sense of urgency and national interest in later pregnancies.
The later chapters suffer similarly, but from a lack of births to discuss, since Jane Seymour was the last of the women to actually be pregnant. As a result, it's really more a book about the birthing of Henry's various children, with an admirable attempt to overcome the sparse sources and add in his mother's labours too. The end rather runs out of steam with only Mary Tudor's phantom pregnancies and easily dismissed rumours about the existence of Elizabeth's illegitimate offspring to discuss.
The book does assume a certain level of knowledge of the Tudor era, particularly with regard to various prominent courtiers. There are references to Wolsey, Cromwell, etc., with little or no context of who they are or why they've been given their roles. Mary Queen of France is referred to by several versions of her name, with no internal consistency. And of course, through no fault of the author's, you'll find the same few names shared between multiple people. If you're interested in the childbirth part moreso than the Tudor part, I'd avail yourself of a brief timeline of the era, or at least some kind of Who's Who of the Tudor Court.
Licence makes a fine effort to provide balance and context for all of these royal births with frequent comparisons to the practices and limitations of women with less spectacular financial and social circumstances. Unfortunately, these do at times become repetitive, most likely due to a lack of diverse sources about the lives of ordinary women of the time. An awful lot of giving birth in porches, with some incidents repeated in multiple chapters. This might be to cater to reading single chapters or chapters out of order.
There is a decided lack of balance in other aspects though. She opens the book with an ode to all the choices modern women have about birthing children, which was astonishingly blinkered. It made me pretty suspicious of any further insights she might offer and I was tempted to give up on the book altogether. Later she attempts to explain some of the practices of folk catholicism and succeeds in sounding as though she is describing a baffling and long extinct alien culture (I'll be honest, I found it hilarious). She definitely tries for balance in discussing the religious reforms of Edward's reign, but ends up coming down more harshly on the proliferation of false relics than the imposition of pretty severe restrictions on religious freedoms.
Overall, I do think an earnest attempt at balance was made, particularly with regard to controversial figures, but the author's biases definitely shine through at times.
It's quite a short book, particularly when you factor in all of the digressions and the occasional repetition. It's an interesting topic that tends to be left by the wayside, but in all honesty, the source material here is just not enough to justify a full book. A wider scope in one way or another might have been of benefit, perhaps reaching back into the War of the Roses. Though again, sources may have been troublesome.
There are some interesting details here and there, particularly the inclusion of various folk remedies. Worth a read if you have a particular interest in either the Tudor women or childbirth throughout history and keep your critical thinking hat on. It's short enough not to take up an age, the chapters can easily be tackled alone and/or out of order if you're familiar with the people and the timeline, and the information it does present tends to be reasonably well-researched. There are some sloppy errors that should have been caught in editing. If you don't have quite the same set of pet peeves as I do, it might even stretch to a 3.5/5.