thank you very much you have relieved me.i was worries because i am trying to get pregnant
It's very unlikely that you got it from a casual contact like your suggesting, btw. It is contractible only by oral ingestion of the stool. So...unless you touched the area the cat brushed and then put your fingers in your mouth, I wouldn't worry.
You get it by being in contact with a cat's stool who has toxoplasmosis and ingesting it. For example, if you touched a infected cat's feces and then put your hand to your mouth later. Normally, it won't hurt you unless you're pregnant or have a weakened immune system. There is a blood test you can take to see if you've been exposed to it, but you could have been exposed to it years ago and didn't even know it. I wouldn' worry. The cat would have had to be infected with the disease, then you would have had to touch it's feces and someone ingest it. The chances of all that happening are pretty small.
Why are you worried? Are you pregnant? Try not to worry. I worried about that when I was pregnant and my vet said that she treated many, many cats during her pregnancy at work and never worried about that, and she was fine.