This book, Oje, ich wachse! (Oh, I'm growing!), is a comprehensive guide to pregnancy written by Dr. Frans X. Plooij and Xaviera Plas. The book covers everything from the physical and emotional changes of pregnancy to the practicalities of preparing for a baby. It offers guidance on what to expect at each stage of pregnancy, with clear and concise explanations and practical tips. The book is written in a engaging and accessible style, making it an invaluable resource for expecting parents.