Chemical? 😕

I am 15 DPO as of this morning. I’ve had horrible bloating & PMS symptoms for a week now.

Started spotting yesterday afternoon (VERY LIGHT & very little). Took a PT & it was negative. Woke up this morning, changed my tampon & it was hardly damp with blood. I took a test this morning & got a clear positive. But I just started bleeding a little heavier. I have a feeling this is a chemical but need thoughts from y’all. (BTW... I took this picture 20 minutes after I took the test but I read my results within 5 mins of testing. So it wasn’t an old test even tho it looks like it in the photo 🙃).