If you're asking whether it is possible to ascertain the gender of the baby
from fetal heart rate
, it is not possible.
This would require an ultrasound which, at 22 weeks, can usually show gender. If you're asking whether 134 bpm is a safe or normal heart rate for a 22 week fetus, the answer is yes. 110-170 is a normal range at that age. These questions can be answered during her next OB visit!