I had my girl mated 22 days ago, today she seems to be panting a bit, admittedly the heating is on, I worry in case anything is going wrong.  The stud dog owner said it could be because she's at the implanting stage and could be feeling the effects.  She is fine otherwise, eating not drinking lots etc.

Any suggestions or help to put my mind at ease.

Thank you very much

contact a vet for advice