I'm so sorry for your loss.
After my 2nd loss, I had a Recurrent Pregnancy Loss Panel.....it included (copied from the lab order)
Anti-Nuclear Ab (FANA)
Anticardiolipin Ab, IgG, IgA, IgM
Beta-2-Glcoprotein 1 Ab, IgG, IgA, IgM
Phospatidyserine Ab, IgG, IgM
Anti-Thyroid Microsomal Ab (TPO)
Rheumatoid Factor (Neph)
Factor V Leiden (PCR/APCR)
Protein C Deficiency
Protein S Deficiency
Anthithrombin III level/activity
MTHFR gene muation
Antiphospholipid (include antiphosphatidyl choline, serine, and inositol) antibodies
PGM-prothormbin gene mutation G20210A
PAI-1 Genetic mutation and activity (plasminogen activator inhibitor)
we also added the Karyotype for me and my husband to check for 'balance translocation"
Good luck to you...