Between 120-160 bpm
From the first time the hearbeat is heard/seen it will be between 120 and 160.
A five week old fetus usually has the tail. Other features are still invisible.
100
What is a foetus???
You have a ultrasound.
She can't.
A 2 week old fetus? No, you can't
At 5 weeks it's a embryo not a fetus. it just grows and can not feel, hear or is aware of anything yet.
See the Related Link below.
Yes.
Nope
A 23 week old fetus is about 500 grams in weight, and measures 29 centimetres from head to toe. At this point their hearing is established and lungs are developing.