How did you find out you were pregnant?

Growing up I've always struggled with a bad knee since I was a kid so one day I went to a doctor to see if I could get any relief. Before she could give me anything for the pain she had to do bloodwork. A few days later I got a call from my mom. The doctors office couldn't find my cell so they called my parents home phone ( my mom is also a patient of this doctor) and left a voicemail there thinking I still lived there. All I remember is my mom telling me I was pregnant and my jaw hitting the floor lol.