Terrified

Hi I’m a Junior in High School and I’m currently freaking out and I was hoping that maybe some of you guys could help me calm down. My boyfriend and I are sexually active, we always use condoms, and I started birth control a couple weeks ago (not done with my first month). A couple days ago me and him hung out all day and had sex many times during that day too. We used a new condom every time, but I’m scared that some of his sperm may have transferred? If that makes sense? I know it sounds dumb, but I’m spotting and I’ve never done that before and I dumbly looked up what that meant and I got two answers. One bing that I’m pregnant and the other being my body getting used to the birth control. I’m just really scared and overwhelmed so anything would be nice at this point! Thank you!