One ovary now 😢 so frustrated

Gerica
So my fiance and I have been ttc for 6 months. Something felt off and I went to my Dr and a cyst on my left ovary had come back after my first surgery. Unfortunately he had to take my ovary and my tube (so this would be my 2nd surgery, but removing just the cyst wasn't possible this time). He said he also saw endometriosis and took as much as he could out, but he told my fiance he's worried it might come back. This was in January, and we're trying to conceive again. I'm just so frustrated it hasn't happened. My cousin just found out she's pregnant after only trying for a month, a few other friends announced their pregnancy, or announced the birth of their babies and while I'm really Happy for them, I couldn't help but cry. My fiance feels so awful, because he feels like its fault. But I feel like its me 😭 every month I show signs of pregnancy and get all excited, just for aunt flow to come. I'm in the TWW right now, but I just know I'm gonna start soon. I really thought this was it, I've been overly exhausted, super sensitive breasts, hungry all the time, etc 😢 but now I'm cramping. Ugh. Just going to try and focus on our wedding in Aug. Sorry for the long rant, I just feel so alone