When to test after 3dt?

Lovely • IG: Plentifully.day TTC #4. Sept 2014 tubal reversal. Feb 2016 HSG: blocked tubes. May 2016 IVF: failed. Aug 2016 BFP turned to 4th loss
I'm 4dp3dt and of course I'm dying to test. Anyone care to share when they tested? Or how long I should wait?