Going to ovulate early?

I tested yesterday cycle day 4 as I thought my period had stopped (it hasn't yet still having some light bleeding/spotting) I thought it was darker than it should be so tested again today cd5 and it's darker still, I used to ov cycle day 18 but I recently mc so obviously my cycle is going to be different, I'm expecting to have fully stopped bleeding by later on tonight and thinking I might ovulate earlier than usual this month :/ what are your thoughts?