By which month is the baby able to suck its thumb, yawn, stretch and make faces? expectant moms also begin feeling their baby move.
a. 2nd month
b. 3rd month
c. 4th month
d. 5th month

By the 4th month is when the baby is able to suck its thumb, yawn, stretch, and make faces.

By the 4th month, or the second trimester of a pregnancy, is when unborns call yawn, stretch, and do all of the listed things above. This is usually the month where you can also identify if the unborn is a male or female, since by month four, they develop their genitals and also organs. 

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