Blake just learned that she is 6 weeks pregnant. her developing baby is in the period of prenatal development.

Embryonic stage. This period spans from fertilisation to the 10th week of gestation. By the 6th week, the embryo has its neural tube closed. The arms, lungs, liver and ears begin to develop. The hearts become more developed and begins to beat more rhythmically. The embryo has developed the characteristic C-shape, the Pharyngeal arches develop and the spinal cord begins to differentiate

Single strand binding protein by peptide bond