Thanks for posting your query
From the information you have provided, I understand that you were treated with clexane
for suspected deep vein thrombosis
( blood clot in leg).
The good news is that the leg scan is normal.
The high pulse rate you have can be due to
1. Pregnancy itself- normally the pulse goes up by 10 beats
2. Anxiety- stress- which is quite understandable while you were being tested for blood clot in leg which is a potentially serious condition
3. Fever- could make your pulse rate go up
3. Anemia- low haemoglobin
levels which is again common in pregnancy
4.Other rare causes - thyroid
over activity, cardiac problems etc
This is definitely not due to clexane.
Please meet your doctor who will find out which of these is the cause for high pulse rate.
Hope this has helped.
All the best, take care.