OK , so the third trimester begins at 26 weeks and you are saying that is when life begins .
Heres an unborn baby in its second trimester (34 weeks) , just before "it gets life on its third trimester"
That is when the unborn baby begins to grow hair , has fingerprints and can recognise peoples voices , and you are saying it isnt yet alive ?
Mayo Clinic
Fetal development: The 2nd trimester - Mayo Clinic