Contaminated Condom

So my bf was trying to put a condom on, but i was really dark so he had trouble seeing. Long story short, he applied it one way then flipped it the other way, then flipped it back to the other side. Then, you know...we fucked. But, now I’m due for my period and I’m late 2 days, but I’m feeling those symptoms. Might I add, I just started birth control like 2 weeks ago. Plus my CM is semi-thick. I’m kind of scared and know it’s unlikely that I’m pregnant but like I’m still skeptical. Please share what you think!