First of all you have taken 1st dose that means you r well protected if you follow covid norms strictly. Secondly temp gun is not an accurate to guide about fever, use thermometer although it is also not accurate but still much better than a gun. Most imp is your symptoms. If you r felling no symptoms you doesnt need to worry.
Next Steps
For furthur advice contact me on practo app.
Health Tips
Monitor your vitals like pulse bp and sugars