Possible BFP after a period??

My husband and I have been TTC since September. I was just starting to feel like it was never going to happen. Almost depressed about it.

Ovulated April 3rd. BD the 1st and 3rd. Thought my period came the following week. It was the normal length but super light compared to other months. I’m set to ovulate again in a few days, but I came home and noticed a light mix of brown and pink spotting. Totally not normal for me.

Decided to take a test on a whim since something felt off.

Is this my BFP?!

Is it even possible to get a positive after what seemed like a period? Calendar below for reference.

Any thoughts?? I don’t know if I should let myself get excited yet or not!