Does fetal hiccups indicate normal amniotic fluid volume? Fetal hiccups are an important process experienced by both mother and baby, and are also a manifestation of fetal development. Fetal hiccups are not only a sign of fetal health, but are also related to the amount of amniotic fluid. This article will explain the relationship between fetal hiccups and amniotic fluid volume from the following four aspects. What are fetal hiccups? Fetal hiccups are when the fetus makes continuous brief contractions and relaxation movements in the womb, causing the child to suddenly tremble and produce the sound of \”ouch, ouch\”. Fetal hiccups occur late in pregnancy, usually between 32 and 38 weeks of pregnancy.