What Are The Chances Of Getting Pregnant While Endometrium Thickness Is 6mm?

i am 32yrs old. I had two ectopic pregnancies before. One was in right tube and it bursted. Another in the left it was treated with mytheroxate injections and an embolisation had also done for full recovery as there was vascularity. After that i had done an icsi treatment which was a failure, i am told that endometrium thickness is very less 6 mm only. Can i have a baby in future, its my 7th year of marriage. I am having regular periods for two days only. Please send me a reply. Should i wait for a biological baby or should i adopt.