project planning

because i'm a virgo, i started tracking my periods and reading up on ovulation calendars and when it's a good time to have sex to increase chances of being pregnant.  i was shocked to realize how hard it is to time these things!  you pretty much have a 3-day window of opportunity each month.  are you kidding me?!!!  the first couple of months, we didn't have sex during that small window.  i didn't want to force it and add stress.  i read that the more stressful it is, the less likely it is to happen.  mik didn't even know when i was ovulating.  also not sure how accurate those calendars are.  i know a lot of people who used ovulation kits with pee sticks and all that stuff.  not ready for that...  just wanted it to happen naturally.  on the 3rd month, i realized we did have sex during that time.  i was hopeful but come on, what are the chances?