i would say rest first. Cause you are still young. No need to be in a hurry.

Tune your body to good condition first. Like changing your diet to eat healthy. Also, stop smoking or alcohol.

Also make sure your husband is healthy too. Reduce smoking and alcohol. Maybe your husband's sperm is not healthy.

Also, are you a physically weak person? Do you go for exercise regularly. Exercise like jogging would be good to strengthen up your body. Don't just rely on nutrients and especially chinese herbs alone. You can also try yoga if you want.