Worried about pregnancy

Alyssa
Hi so my boyfriend and I had sex on January 10th and the condom broke. While he reassured that he pulled out and most of it didn't get in me we went to get the plan b pill 30 mins after. I took it immediately and felt better but I started to panic after looking at the statistics of the pill. Even though it is 95% effectivene, what if I was in that 5%? So I continued to stress about it. I noticed that I was having more white thick discharge than usual. I also freaked out after I realized my breasts were a decent size bigger and pretty tender. On February 5th I got bleeding and I was SO happy but I noticed that it lasted like 2/3 days which is shorter than my usual 3-4 days. It wasn't extremely heavy but it also wasn't light because I was seeing some lumpy clot-like things from the bleeding (which is normal for me). On February 17th I had some strange very light bleeding and brown discharge. What are the chances that I'm pregnant? I want to take a test but it's at my boyfriends house and I will not be able to see him for another 2 weeks.