Unprotected Sex, Pulled Out, Took Plan B

Hey everyone! So I had unprotected sex on Saturday morning (we tried using a condom but it didn't fit 😂). He pulled out and I rushed to CVS right after to take Plan B. It was 3 days before my fertile window was supposed to start, so I shouldn't have been ovulating. When I got home, I had clear discharge on my panties. This is just from me being sexually aroused right? I'm pretty sure that didn't mean I was ovulating at the time. Anyways, if anyone has been through the same thing please let me know! I think I'm fine, and I'm sure as hell getting on birth control before we do it again.