TTC, IUI with PCOS

I'm in such a depressive mood today. Currently on my 2nd round of <a href="https://glowing.com/glow-fertility-program">IUI</a> procedure and today was the blood test for pregnancy. Needless to say, it was negative AGAIN. 1st round I was kind of expecting to be negative result because only one follicle got to the recommended size but wouldn't release. This time we had 3 good sized follicles & I released on expected date. I was trying my best to not get overly happy just incase it didn't work. But I broke down crying after I got the call that my results were negative. I feel defeated, like there's no hope for us. I have PCOS, I have 2 children from previous marriage thanks to clomid. I've always wanted 4-5 children but the older I've gotten I decided to just focus one having 1 more blessing. My partner has none & has fertility issues in addition to my PCOS. Not to mention my insurance kind of sucks, having a high deductible to pay towards. Basically $150 per visit for ultrasound & that's not including my $75 copay. Depending on your ovulation process, you could need 1-4 ultrasounds per week. I don't even know if it's financially smart to go for a 3rd round doing <a href="https://glowing.com/glow-fertility-program">IVF</a> because it's even more costly than <a href="https://glowing.com/glow-fertility-program">IUI</a>. I'M LOST.