I haven't found any evidence that allele frequencies have changed - I just started to look into this, and didn't even have a search term when I started. Due to that, I thought it was obvious that I didn't have anything on micro-evolution, so I gave you the evidence I do have which, even though does not do anything to support the idea that allele frequencies are being influenced, does support the idea that there's potential for a lot of influence.

Hmm. A contraceptive and unplanned pregnancy survey by 23andme would be so interesting... I wonder if they do things like that... If I get a useful response to my request for a credible source on their accuracy, I will investigate this. (I want to get their service anyway but am demanding a credible source first.)