I just found out I'm pregnant a few days ago and am looking for the best online pregnancy journal - I'm hoping to find one that I can complete online and then have printed in a book later...
Start a blog at wordpress.com or some such website. You can then actually turn your blog into a book at the end of your pregnancy, using websites such as the following:
I've got an app called Tinybeans which is an online pregnancy journal and can then be used as a baby journal after the birth.
Great for photos, videos and milestones and can be shared with family and friends if you want to.
Working on books which will be released later in the year...