I am a 26 year old woman who is moderately healthy. I used the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> religiously everyday for 4 months charting everything from symptoms, exercise, to ovulation test. Then I took a break from the app for a month to just enjoy my husband and lo and behold that is the month I conceived. My greatest suggestion is to not stress over every detail or possible sign. Overall I thought the app was good to get a baseline of a typical month. Love the pregnancy version app.