23 million sperm count is normal
So when the couple are normal after confirming that she is ovulating the best way to achieve pregnancy at the earliest is lifestyle modification.
Consuming nutritious diet, doing regular physical activity and having regular sexual activity.
Regular sexual activity is alternate days sexual intercourse because which keeps the sperm in good health. That is the number and the sperm motility are well maintained when the couple have alternate days sexual intercourse.
You really need not look for the signs of ovulation once it is confirmed that you are ovulating because the sperms deposited in the genital tract one to two days prior to ovulation are more effective compared to those deposited on the day of ovulation.
So alternate days sexual intercourse is more practical and effective compared to having intercourse on the day of ovulation.