Need to vent!!!

Been TTC for just over 6 months now (I appreciate that's not long in the grand scheme of things) this cycle, did everything we could, opk, tried preseed, Bd at all the right times. Felt quite positive. AF not due for another 4 days and this morning after I went to the loo, wiped and had a fair amount of red.... Believe AF is on her way. Am sooo upset. Really can't take anymore disappoint month after month... Think I may need to take a break from TTC next month.... Feeling a bit low today.