Chemical, successful pregnancy, chemical again?

Michelle

I had a chemical/early miscarriage when first ttc, then had my son, now started ttc for #2, had another chemical/early miscarriage. What gives? Does my body need a practice pregnancy or something? Is that a thing? Anyone had something similar? Hoping my son wasn’t just a fluke. Had pretty bad symptoms with both my chemicals too, not too bad until closer to 6wks with the successful pregnancy. Thanks all, good luck