started to panic. i really felt like it was now or never. >> reporter: single motherhood by choice is becoming a common reality for many women. now there is a whole industry devoted to matching men and women who are looking for a co-parent but not a spouse. social networks linking up people wanting to have children, where potential parents meet, vet each other and if they agree have a child. eric finally agreed to donate his sperm to nina no strings attached. >> i will not hold you liable or try to get money out of you or make you change diapers. >> reporter: and just like that, nina embarked on a journey into motherhood. documenting it all on camera. >> hello? i am trying to figure where the upper left-hand quadrant of my ass is. >> reporter: the film is titled "first comes love." >> nina, he is so cute. >> really? >> yeah, he is gorgeous.