One night stand pregnant won't have abortion?

Hello,
Basically I had a one night stand with some girl I met down the pub. She told me she was on the pil and We both agreed before and after she would get the morning after pill for precautions, when I messaged her asking if she got the pill she replied 'no your going to be a dad... hahaha' I am 21 single and she is 29 and divorced with 2 children with 2 different men. I don't want to be another one of those men, iv asked her plenty of times to speak to me seriously and it just seems like she finds the whole situation hilarious and I don't see the funny side to it? Do I have any rights? Can I withdraw my rights as a father as bad as it sounds I don't want this child I'd prefer to have a child with the one I love? It's not fair on the baby as much as it's not fair on me... Please help me I'm in a sticky situation
One night stand pregnant won't have abortion?
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