The best method to impregnate a woman is to have sexual intercourse during her fertile period. This is the time when an egg is released from the ovaries and is available to be fertilized by sperm. The fertile period typically occurs a few days before and after ovulation, which is the time when the ovary releases an egg.

To increase the chances of impregnating a woman, it's important to have regular sexual intercourse during her fertile period. This can be determined by tracking her menstrual cycle, monitoring her basal body temperature, and observing changes in her cervical mucus.

It's also important for the man to maintain a healthy lifestyle, as this can increase his fertility. This includes eating a balanced diet, staying hydrated, getting regular exercise, and avoiding substances that can affect sperm quality, such as alcohol and tobacco.

In some cases, a couple may need to seek medical assistance if they have difficulty conceiving. This may include fertility treatments such as medication or procedures to help the sperm reach the egg. A doctor can provide more information and guidance on the best approach for a couple trying to conceive.