Waiting for Ina May's Guide to Childbirth book to come in now, heard it is great book. I recently bought the Prenatal Yoga
Deck, it has breathing techniques and poses
, I like it because you can go as many cards as you have time for. Also, try to spend time a couple times a day just breathing, refocus everytime your mind wanders. I have a mantra, just be and breathe, and repeat in my head to help focus; practice does help.