period or pregnancy?😰🤔

Adrianis • Dominican 🇩🇴 23 years old. Volleyball and softball are life 🏐💕⚾️.Obsessed with food 🍕🍝🍟🌮
I hadn't had my period since January 2 that was the end of my period cycle I ended up having sex I couldn't wait what a way to start the year lol  I was supposed to get my period on the 27 of January it didn't even bother to come i waited and waited nothing January passed and I'm sweating bullets I took 3 pregnancy test all negative on February 10 I get some blood not sure if it's my period or am I spotting.What is spotting like? How is it different from period how long dose it last?