Mazal tov on your upcoming wedding!
We have lots of works listed in our article English Books. We particularly recommend those listed under the category Philosophy and Halacha.
You also might find some of the articles and Q&A posted on our website to be of interest.
We offer an on-line kallah course, Kallah Companion, which addresses many common questions and is designed to supplement regular kallah classes. And our website's supervisor, Dr Deena Zimmerman, has written a very clear and informative book including the key sources of hilchot niddah.
Please don't hesitate to discuss with your kallah teacher or write to us any particular question that comes out of your reading (or lingers after).