Police in the United Kingdom are using data from period tracking apps and mass spectrometry tests conducted on blood, placenta, and urine to investigate patients who have had “unexplained” miscarriages.
Though abortion is legal in the UK, there are TRAP laws in place requiring certain conditions to be met first, paramount of which is that two separate doctors need to agree that the patient meets the criteria of the 1967 Abortion Act before any treatment can go ahead. Self-managed abortion is a criminal offense with a maximum sentence of life imprisonment in the UK, as is any abortion performed after the pregnancy has progressed passed 23 weeks and six days, unless the patient is at risk of serious physical harm or death, or the fetus has severe developmental anomalies.
There's no point looking at the US for examples. UK is a different country and works differently. You are reminding me of some pro guns Americans, who say that since guns are banned in the UK (they are not, they are controlled) we have stabbings all day long, while in reality there are more stabbings per capita in the US. Or another common example of Americans thinking that self defence is illegal here and if you kill a burglar you'll go to jail. While in reality there will be a proper hearing in the court and you'll walk free because you were using reasonable force to protect yourself and your family.
A lot of systems are crumbling in the UK due to Tory mismanagement, but the courts are still working as intended and do protect people, sometimes even from themselves.