Spike but still on my period?

Bianca? • 23 years old glow and fertailaid helped me conceive my first love👶💕
So glow said I might have ovulated. Can you ovulate if your still on your monthly its really light but I still count it because I have to put at least a panty liner on. Today will be my fifth day and I start my opks on the 6th. I hope I didn't miss my fertile day and I'm now confused because glow. Your thoughts?