Your sex life should improve.
Must keep
sugar under control
Avoid the drugs which affect sex life adversely
Next Steps
1. First control
sugar. with safe drugs
2. Tests advised:
HbA1C, C Peptide level, Semen analysis.
3. Your spouse shall also be examined, especially for the patency of fallopian tubes, and ovulation.( BUT this is after, your semen analysis is normal).
Health Tips
Don't panic.
Modern medicine does have good answers to your concern.
Take care.