Ectopic pregnancy questions

Lovely • IG: TTC #4. Sept 2014 tubal reversal. Feb 2016 HSG: blocked tubes. May 2016 IVF: failed. Aug 2016 BFP turned to 4th loss
Hi ladies, I had a tubal reversal and my risk for ectopic is higher so I wanted to know what should I look for? Any tips or info you can give me? Thank you