This has worked with us for nine years, avoiding ovulation week, withdrawing always and knicker spotting, i can ususally tell when I'm ovualting.
But even with doing all the above, have you fallen pregnant?
I'm a little worried as last period started stringy brown, one day heavy period, next day so light, next day nothing, next day light and then finished. Two days later i now have dry white discharge in pants and I am so moody that i cant stand to hear myself moan! i was sure i just had a funny period until i had a sudden memory that i had similar discharge during pregnancies so now back to wondering if i am. But the chance I am is so small as I use the above.
I'd be interested to hear what you think and if you fell pregnant this way?