Confused, Curious, and Worried

unknown

I’m sexually active. I use protection(condoms), I once took a plan b (July 2nd) due to us finding out after that the condom had broken we weren’t sure if it was during or after. I’ve only had sex 6 times. My current cycle is four days late the most it’s every been late is two days, the last time I had sex was August 26 and two weeks after I took a pregnancy test and it came back negative. I haven’t had any symptoms of pregnancy besides extremely sleepy, besides that nothing else. What should I do and is this normal?