frustrated

I am 30 years old and been pregnant once when i was 25 but had a miscarriage. I didn't even know i was pregnant at the time and I didnt have the <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a>. Now that i have this app it's more frustrating. it tracks alot ovulation and all. but when u are trying to have a baby and u dont even when u have done everything right it's even more frustrating