Scared to test......?

Courtnei • With the love of my life for 3 years & 8 months. ❤
My AF was supposed to come yesterday but I didn't get it. My last AF was sept. 3-6 And i had sex the 13th with spotting on the 17th. I know I should test but I'm afraid of getting a negative. I'm getting cramping right now. It feels like AF but idk...