Pregnancy Timeline

preconception  |    1st trimester   |         2nd trimester       |   3rd trimester    |  post birth

week 0 week 1 - 4 week 5 - 8 week 9 - 12 week 13 - 16 week 17 - 20 week 21 - 24 week 25 - 28 week 29 - 32 week 33 - 36 week 37 - 40 birth