New here and TTC!

Hi! So I’m new-ish to the app but haven’t posted before. I just had my IUD removed on 6/19 (ParaGard). My OBG said it could take up to 2-3 months for things to regulate (or some ppl get preg immediately) - since no hormones, the only thing would be thickened CM. I read on here about taking Mucinex during fertile window (I took it for about 3 days). My window was last week (ovu on Sat); we tried 3 x (every other day). I’m supposed to start my period in 9 days. So do you all just wait until a missed period? Any advice?