Hypogonadism. Looking for advice.

I'm 31 M. We have been trying for kids for a couple of years. I got my semen analysis done about 10 times. I am diagnosed with OAT. Basically low sperm count, motility and morphology. I am assuming it's secondary hypogonadism.

Count: 3M

Motility: 7%

Morphology: 1%

I have low testosterone and low normal LH and FSH. My prolactin is slightly elevated. Fertility centres pushed us to go for IVF ICSI. But I wanted to understand the root cause and consulted an endocrinologist. He asked me to try to lose some weight for a couple of months and get a repeat semen analysis.

He suggested he would prescribe injection to increase testosterone. I don't remember if he said LH injection or HCG. Definitely not TRT

Reaching out to members of this community to understand if these injections helped anyone. Any advice or suggestions is Thanks in advance