How would you know if you’re pregnant?


So I am currently nursing my daughter who is nearly 10 months. Still haven’t had a period since delivering her. I know while nursing the chances are much lower in getting pregnant, but not impossible. Hubby and I are actively trying for another, because we want two close in age. Aside from constantly taking tests, how would I ever know I am pregnant? I had no pregnancy symptoms with my daughter, just missed a period and took a test.