Can some answer this question...

I recently had my first trimester appointment (12weeks) and I didn't get an ultrasound or any blood test (due to the fact we opt out on the Down syndrome test) all I had to do was pee in a cup and they did some sort of test before the appointment continued. I completely forgot was she said the test was for? I'm about worried at the fact they didn't test to see if I was still pregnant and didn't miscarriage or have a missed miscarriage. Can anyone tell me what that pee test was for or whether they used my urine as a pregnancy test? I'm a first time mum so I have no idea.