Pregnancy Assistant
Pregnancy Assistant is an android application with widget, which enables women expecting the child to track fetal development week by week. From the first week of pregnancy (from the last menstrual period before the birth) to forty. And even a bit further. How is it working? Well, here are some screenshots. Just enter the date of the last menstrual period (meaning the beginning of pregnancy), and every week you'll get information about the most characteristic of this period incidents, that occur in the life of mother and child.
There are also averrange weight and height of the baby, and detailed description what is happening at a given stage (eg, 27 weeks - child opens its eyes). The whole is embellished by photos. At any time you can to look at application and update your knowledge.
Where do we start? From what has already been mentioned above: the setting of the first day of last menstrual period.

There is no need to enter the date each time. Just once, and the program will watch over the course of pregnancy, showing what happens week after week. Shall also keep the number of days remaining to parturition.
There is also counter available, which you can put (as widget) on your main screen.
Remember to tap "Menu->Save&exit" in widget Settings window (as shown above).
Pictures used in application are from Dzieciowo Mi!.
If you like this application and you think it is usefull, you may donate here to support its further development.
Note. This is not medical application. The application doesn't substitute for scheduled visits gynecologist leading your pregnancy. The data presented are indicative and can not be the basis for rule on the correctness or abnormalities during pregnancy.