It is normal to have a higher HR in pg as the PP's have said, I have an increased HR during pg and sometimes (like last night i could feel it pounding)
167 is a bit high though, but a rise to 110 would be more normal...
were you racing around when it was 167 or were you hot or stressed? these things will increase your HR.

When is your next appointment? I would def mention it then and take it easy though, rushing around is not going to help (like i can talk )