When I (M24) was in uni I went on a few dates with "Amy" (F22) and we slept together (with protection) a couple of times. It didn't work out but we parted on friendly enough terms. A few months later I hear through a mutual friend that she's pregnant and I call her to ask if that baby's mine.
She ignored my calls so I went round her house (we both did uni in our home city) and her Mum told me she wasn't interested in seeing me and it wasn't my business. So I left and didn't go round again.
I thought the baby was probably mine (though couldn't be sure obviously) so I went to a solicitor in town and asked what I could do and they told me I had to wait until the baby was born. Fast forward a few months and I hear she had the baby so I go back to the solicitor and they go to court for me to ask for declarator that I'm the father, parental rights and responsibilities and contact with the baby.