When will it be my turn

Three years of trying and I still haven’t been pregnant. Not even a scare. I’ve done clomid metformin and recently femara. I ovulate most of the time while on it but will have a random month where I don’t respond. Like this last month. All of the excitement and side effects all for nothing. Having a second ovulation in the same month, Then being over two weeks late but getting all negative tests. And then the dreaded happens. She shows up. Of course I’m not pregnant. Why would I be? Of my co workers, there have been four babies born in the last month, all a week apart. And here I am, no baby. No clue when my time will come. I can’t afford IVF- and my insurance doesn’t cover it. I feel defeated and that I’m failing as a woman. When will it finally be my turn?