Does Buddhism explain the past karma, and rebirth, of a short-lived fetus?

When the rebirth-linking consciousness arises in the fetus (I read elsewhere at around 26 weeks), but the fetus dies (somehow) prior to or during birth, is it possible to understand why this kind of existence happened? And could it be a result of previous lifetime good or bad karma? In this situation, while there are senses, the fetus cannot make any conscious decision or thought processes or have any understandings yet. Of course depending on the situation physical suffering may have occurred. So I am trying to understand what kind of link this lifetime is, between the previous and next lifetime, and the effect on continuing rebirths.