I have always puzzled when some churches demand that their members undergo pregnancy test before nuptial ties. In all honesty I think this is a misplaced priority as emphasis should have been on virginity test which defilement would bring about pregnancy. Though I am also not subscribing to virginity test. I sometimes get lost in thoughts wondering if churches endorse fornication provided those who commit it do not become pregnant. This also brings to mind, would churches prefer abortion to wedding with pregnancy? I have heard of brides aborting just days to the test and eventually divorcing as a result of inability to produce children after marriage. It is my humble position that churches should archive pregnancy test as this is no longer fashionable. However what brings about pregnancy precisely (premarital sex) should be discouraged. It is pertinent men of God preach to discourage premarital sex and at the same time warn our young ones of its spiritual and health consequences.
In all pregnancy test in my opinion should not be one of any prenuptial tests.

There's hardly any way a pastor can stop members from fornication. If the man uses a condom or withdrawal method, there'll be no sign that anything happened.
It's just between U and God.