Be careful, and I know you've heard it before....
Symptoms can be extrememly UNreliable in determining pregnancy. Join the waiting game like everybody else, and stop the guessing...your just going to 'trick' yourself or scare your period into being late. Then you'll say 'I am 3 days late, but hpt is bfn'.
Stop thinking about it. It is what it is, and will emerge in a short time. NObody and Nothing can tell you if your possibly pregnant or not. Even if you have intercourse at the exact right time, your chances of conception are 25%. Wait 4 days, and test...that is your ONLY reliable answer unless your dr. runs blood tests at this point.
I'm not trying to be insensitve, and have experienced what your going through, unfortunately, for a couple of years. The minute I threw away the charts, thermometer, clomid, baby aspirin, progesterone pills, and flaxseed...I showed up pregnant. I am beginning my 4th pregnancy. Stop making yourself crazy, it takes LONGER to conceive that way.
i know how frustrating the waiting game can be and it does not stop with the bfp. try not to drive yourself nuts with analyzing everything (yeah right, i do the same). take a test in a couple of days. i got my last bfp at 11dpo (ended in mc) but the tests are very reliable. best of luck i hope you get your bfp this month. btw....i think it is good that you are aware of your fertility but try not to let it consume you. i have done that for soo long and it is exhausting. God Bless!!
I agree with the others: You never know until you know. Ugh, it is tough to wait though, isn't it?
Look at the bright side - I'm only 7DPO so you're two days closer to knowing than I am :)
Hang in there and good luck!