Almost 300 Labour MPs helped push through a law change that means women will will no longer face prosecution for aborting their own baby for any reason and at any stage up to birth.
Reports suggest that claimants could get more time to seek support before Labour's welfare cuts are implemented under 'tweaks' being considered by the Prime Minister.
Fourteen MPs who entered the Commons just last year are among the signatories of a letter demanding he and Chancellor Rachel Reeves U-turn on cuts due to be voted on next week.