Hsg test after reversal

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 had a reversal done September 2014 ice been able to get pregnant but have miscarriages at about 6 weeks. My doctor is going to hsg test next week, have any of you been through the same? What was the outcome