From the archive: My four miscarriages: why is losing a pregnancy so shrouded in mystery?

We are exploring the Guardian Long Read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2020: After losing four pregnancies, Jennie Agg set out to unravel the science of miscarriage. Then, a few months in, she found out she was pregnant again – just as the coronavirus pandemic hit. Help support our independent journalism at theguardian.com/longreadpod