Could I be pregnant?

My husband and I had unprotected sex on the last day of my period (Sep 13th). I know pregnancy is always a possible but unlikely during your period. It’s now the 25th and I have been feeling super weird the last several days with bloating and cramping. I took a test and swear I see the faintest line, but it could just be line eyes. It showed up within 5 minutes. Has anyone experienced ovulating right after their period and got pregnant? I’ve had irregular cycles since I had my daughter 16 months ago, but my cycles are usually anywhere from 26-34 days.