Late Bleeding but still having pregnancy symptoms

Hello, my cycle is normally 29 days but I finally started bleeding on day 34. I started with dark brown stringy discharge but now have dark red with clots. My husband and I did the baby dance on day 17 and my predicted ovulation was the 18th. I’ve been having just about every single pregnancy symptom and they have not subsided. I took a test 1 day before my expected period but was negative. Is there any chance I could still be preggers even though I started bleeding?