I hate TTC lol

trying so hard
I'm so sick of it! My cycle symptoms changed since taking 1 cycle of Clomid last December which gets my hopes up just to be left down. For the last 6-8 months my boobs hurt terribly about a week after ovulation and I start cramping 3-4 days before AF, diarrhea on those days and that's about it. This month I have no sore boobs, constipation, a pretty kick ass cold since about 4-5 dpo feeling better now), I'm exhausted in the worst way (slept about 11 hours total and wanna go back to sleep), zero cramps, back ache like a mother. I got my positive OPK on CD11 and today is CD 21 and according to glow I'm set to start AF on the 23rd because of the early ovulation. Tested twice - BFN's. I just hate how all of the symptoms could be pregnancy or af lol