Married to a Stranger by Patricia MacDonald

Emma Hollis, is wealthy, has a good job and is pregnant. Having only known her fiance six months, and circumstances considering, Emma and David Webster are getting married the sooner the better. Emma doesn't really know anything about David and when she is attacked in their honeymoon cottage by an axe-wielding masked intruder, she begins to wonder if she knows David at all. Secrets abound. Tension builds. People disappear. What is going on? Not a bad story.