What Are The Chances Of Getting Pregnant Without Ejaculation?

hi. Two weeks ago I was with my boyfriend and we went a little too far sexually. He was about halfway in me for less than a minute before I told him I didn’t want to go any further as it was my first time. He didn’t ejaculate the entire time I was with him. I’m not 100 percent sure when my last period was, but I’m pretty sure I’m about a day or two late today. I feel fine. I have no pregnancy symptoms, but I have been extremely anxious the past four days. I have high anxiety normally but this has been the worst I’ve ever had it. I lost 6 pounds in two days from stress and not eating. I have been having panic attacks and constantly crying. The only thing I feel with my body is some cramping (which started 3 days ago) similar to premenstrual cramps. Like I said, my boyfriend did not ejaculate, but may have had Pre-Cum. Could I be pregnant?