First-trimester bleeding can be concerning. Spotting and light bleeding, however, are typically merely expected symptoms of early pregnancy. There are several causes of mild bleeding and spotting in the first trimester that are often safe for both you and your unborn child.
Fetal Growth Restriction (FGR) or Intrauterine Growth Restriction (IUGR) & its Risk factors
Intrauterine growth restriction, or IUGR, is when a baby in the womb (a fetus) does not grow as expected. The baby is not as big as would be expected for the stage of the mother’s pregnancy.