History of miscarraige. no known miscarraiges or birth defects in family. now my newborn has genetic deletion.?

why me? why are my genes/ or eggs bad? im healthy. what is this thing effecting me or my eggs genetically? the miscarraiges were with various people so its not so likely to be poorly matched recessive gene phenomenon. ! ? also these conceptions were with people from various parts of the country whose families histories were different from mine....? so im kinda at a loss. p.s. im only 31 now. i dont smoke or take regular medicines or do anything crazy or out of the norm. i have no diabetes or family history of it. no fibroids or cyts. once again, im bewildered. can you help?