If one of my testicle is removed does that affect...

Testicles and fertility :
 a man with one testicle generally produces just as much sperm as a man with two testicles.
Necessary medical examinations in cases of delayed pregnancy :
The doctor may conduct a clinical medical examination with a gynecologist and infertility specialist to detect pathological signs with a hormone examination: LH < FSH in addition to a prolactin examination in women to consider cases of polycystic ovaries, an increase in the hormone prolactin or other pathogens, such as performing a TSH examination for cases of thyroid laziness . The specialist also performs a sonar or abdominal CT scan for cases of polycystic ovaries . The doctor performs a hysteroscopy to look at uterine abnormalities and a semen examination to look for inflammation or abnormalities in sperm Semen analysis .
What are the causes of delayed pregnancy
There are many reasons :

• Cysts of the ovaries .
• Laziness of the thyroid gland .
• Elevated prolactin .
• Deformation of spermatozoa .
• Impaired sperm motility .
• Varicocele .
• Congenital pathology of the uterus .
• Obstruction of the fallopian tubes .

Advice now :
You should undergo a medical examination at a specialized infertility doctor .