I have been ttc as well and am in the same horrible waiting game as you. This is only my first month of ttc I can't imagine doing this for 6 months. You must have incredible patience
Early response tests can give you a positive result before your missed period - they say "up to 5 days early" but obviously that won't give everyone an accurate result so early. I found out two days early with my last pregnancy, we were ttc and I was just feeling kinda funny.
If you miss your period then take a test. Good luck