First time TTC

Hi everyone, first time posting. I have 1 child already but I didn't plan pregnancy, I am doing it the right way this time. Had coil removed on 2nd Jan, haven't had any signs of AF or spotting yet but should be due between Sunday and Tuesday. Been actively trying since removal and taking prenatal vitamins. How long could i be actively trying after having mirena removed before a chance of BFP?

Thank you everyone x