Unexplained infertility

I underwent failed frozen transfer 5 times with 7 blastocyst.
However conceived in the 1st fet with day 3 embryo.
Did hysteroscopic.No issues found in uterus.
Husband sperm also good

However,i did test my auto immune(ANA) out of curiosity.it shows elevated ANA level with tier 1:1280

Did 17 markers auto immune test, diagnosed as sjogdren syndrom but i dont have any sign of the disease.

Could this be a reason for my failed implantation or unexplained infertility?

Dr,suggest to start aspirin earlier before FET since i have high ANA. Does starting aspirin earlier helps FET?