Question

My SO and I BD yesterday after we were done I wiped and had a little bit of brown discharge so I thought I wasn’t pregnant I thought it was the start of The Bloody Devil. This morning everything was good no discharge no nothing so I though okay we are in the clear. I peed earlier and again had brown discharge 🤦🏻‍♀️😫. I decided to take a test and saw this vvvvvfl. After I took this test no brown discharge no nothing. Can I be pregnant or is this a chemical pregnancy.