No one was ordering their own abortifacients online in 1967, the rules were to outlaw “backstreet” abortions.
I don’t know what the limit is, but yeah there’s a cut-off for when a pregnancy can be terminated without medical necessity. When there is medically necessary it can be performed later.
Either way the procedure is available for free on the NHS.
While I think the rules are sound, you’d think the police would have learned from the disgraceful treatment of the mothers who were prosecuted - and subsequently had those convictions quashed - due to SIDS