楼主可以再多试试吧 试一两次没成功太正常了

“At the age of 30, there is a 75% chance to conceive in the first 12 months. This chance declines to 66% at the age of 35 and 44% at the age of 40.” - https://pmc.ncbi.nlm.nih.gov/articles/PMC7721003/#:~:text=At%20the%20age%20of%2030,at%20the%20age%20of%2040.