Here are some photographs of how I test my Bulldogs! You may handle your dogs in a different way, please free to use what you are comfortable with. This is just and example to show you how to use the pads. 1. Wipe the vulva area clean and wipe away any access blood.   2. Slightly open the vulva and insert the pad sideways up with the pink pad in the vulva  about  2 – 3 cm’s inside.   3. Hold the pads in place for a count of 10 seconds.   4. Remove the pad and ensure the pad is damp with vaginal fluid.   5. Read the results and compare with the results pictures below if you are unsure. Below are 3 photos explaining positive and negative results. Photo 1 on the left is a no change negative result, on the right of the same photo is a positive result, where the pad has changed colour.   Photo 2 is a close up of the result, you can see how the pad has changed colour   Photos 3 shows how sometimes colour or spots just appear purple/burgundy around the edges of the pad, this indicates a positive result, results can vary from one small spot of colour to the whole pad colour change.     Please telephone or e mail if you have any queries or questions, we are always happy to assist you.