The social media pages for sperm donors also have comments from women who have experienced the dark side of the online world.
One woman posted screenshots showing a potential donor harassing her for nude images while another displayed abusive messages from a man targeting her size and sexuality.
A woman who wished to remain anonymous told the BBC she was motivated to go online for a sperm donor after she was informed by the NHS that she would be on a waiting list for between three to four years.
The woman, who we are calling Emily, says going private was not an option due to the costs involved.
“I did a lot of research, and I filtered a lot of people out,” she says.
“I only spoke to six men out of the hundreds who responded to my first post.
“I was ready for the creepy people and the stupid questions, so I just deleted and blocked as soon as they came.”
Emily says one man responded with deliberately graphic imagery of what he wanted sexually in order for him to donate to her.
The donor Emily eventually used successfully, who we are calling Ryan, has fathered four children through Facebook groups.
Ryan is involved in the lives of his children, although he says he wouldn’t be opposed to helping someone who did not want him involved.
