No， the fetal heart rate (FHR) alone cannot determine the sex of the baby. The FHR is the number of times a baby's heart beats per minute， and it can vary throughout the pregnancy. It usually ranges between 120-160 beats per minute， but it can go up to 180 during activity or go down to 110 during rest.
There is a commonly held belief that a higher FHR indicates a female baby， while a lower FHR indicates a male baby， but there is no scientific evidence to support this claim. In fact， a study published in the Journal of Obstetrics and Gynecology in 2015 found that there was no significant difference in the FHR between male and female babies.
Other myths and old wives' tales about predicting the sex of the baby include the shape of the mother's belly， the position of the baby in the womb， and the cravings or symptoms experienced during pregnancy. However， these are all unreliable methods and should not be used to determine the sex of the baby.
The only accurate way to determine the sex of the baby is through a medical test such as ultrasound or amniocentesis. Ultrasound can usually determine the sex of the baby after 18-20 weeks of pregnancy， while amniocentesis， which involves taking a sample of amniotic fluid， can be done earlier but is more invasive and carries some risks.
In conclusion， a FHR of 167 does not indicate the sex of the baby， and it is best to wait for a medical test for an accurate determination.
