At four months in the womb, your baby's heartbeat may now be audible through an instrument called a doppler.  Her fingers and toes are well-defined, and eyelids, eyebrows, eyelashes, nails, and hair are formed.  She can even suck her thumb, yawn, stretch, and make faces.  Her reproductive organs and genitalia are now fully developed.  By the end of the fourth month, your baby is about 6 inches long and weighs about 4 ounces.  Please continue to pray for your baby and her mother.