Discouraged (venting)

Am

Everyone else can take a test 4DPO and get a BFP, and I'm over here 2 days late with my period, cramping, irritated and wondering where my BFP is, or at least where AF is...

I keep getting BFN..I'm so discouraged...I'm going to make a doctors appointment this Monday for the following week, just to push back my missed period by a week or so, (so they can't say "ohhhh, you should wait more)

My CM is egg whites again, my brain is wracked from reading different situations, I don't feel pregnant, I have slight twinges of pain from my nipples, I can go on and on but I'm just really annoyed, so much so I started to cry while being with SO two nights ago and we stopped.

I just rolled over and said "goodnight". He wanted to talk; but I didn't want to. it's not him, he's very very healthy mid 20's, so it's most likely me and my failure...

We've been trying for 2 cycles, 3 but this one didn't show up...*sigh* I'm so confused and so sad