Does Rhogam Make False Positive Antibody Test?

Dani

I am 4w2d after a chemical last month which I received the rhogam shot for. Today I got my prenatal labs back and my antibody was positive even though I’ve gotten the rhogam after each miscarriage. I read some places it may be positive from the rhogam shot still in my system and not that I’ve been sensitized. Thoughts??