I hear ya..i been there plenty of times :P It's funny you mentioned about couples trying and doing everything right...Because I always had that thought. They say it is actually hard to get pregnant, it's amazing so many babies are born!

I just recently had a little scare because my period was late after my bf and I using this method, a word of advice : Try not to stress too much, it will only delay your period..I was 3 weeks late!

And alot of studies say sperm isnt even found in precum, so KIT and let me know how ya make out :) Are you late or anything?