Abortion pills (mifepristone) do not directly bring about foeticide but blocking progesterone and causing the lining of the uterus to detach, presumably the placenta too at this stage, will lead to foetal death. There is usually a delay before taking Misoprostol which causes the uterus to contract and empty. Progesterone blockers are not part of induced labour protocols.
I'm not aware of any research carried out to study the effects of these drugs at such a late stage of pregnancy but given the mode of action and dosing schedule it would seem logical that foeticide could be indirectly achieved by inducing placental abruption, the delayed delivery resulting in a still birth effectively. It's impossible to assert that these drugs do not harm the foetus at 30+ pregnancy because we do not have the research to prove that.
I don't know where you are but as far as I'm aware, in the UK, we do not ultrasound women prior to giving tablets for medical abortion. I certainly didn't have one when I was given them nearly 25 years ago. They are certainly risky if you happen to have an undiagnosed ectopic.