Let me clarify the aching coincides with when the testicles are potentially growing or shrinking. clomid in males Zhu and colleagues 52 followed up to 18 months of age, 37,897 singleton infants from fertile couples, 4,351 infants from subfertile couples TTP 12 mo , and 3,909 infants born after infertility treatment IVF, ICSI, intrauterine insemination, hormonal treatment in the Danish National Cohort and evaluated them for gross and fine motor development milestones , cognitive, and language skills.