Struggling today

Cait
So frustrated. I know it probably makes me a crazy person, but I'm frustrated with lots of things right now. First, why won't my doctor do an ultrasound after ovulation to confirm it?! I take progesterone supplements so I can't just do a 21 day blood test. Second, why are people all around me getting pregnant, half of them out of wedlock, when my husband and I just can't. 
I don't want to be negative and be that person who is a jerk, but I feel so downtrodden. I am so jealous when I see pregnant people. I just desperately want one. I think most of you will understand where I'm coming from. 
Right now I can't afford much more treatment other than gonadotropins (haven't tried this yet) and I feel like nothing will work. How do you shake yourself out of this funk?