I’m not a single parent but my sister is and I grew up in poverty with a basically single mother who didn’t work.
Regardless of working and relationship status having a baby is really hard work, even with an ‘easy’ baby.
A more tricky baby and it can ruin you - lack of sleep, lack of money, constant illness etc.
Both of my children were ill constantly for 6 months during their first year. If I’d been working at that time AND single I’d have been sacked.
In your position I would only have the baby if I had family support. My best friend’s ex fucked off when she was pregnant and went abroad. Zero support. She almost lives with her mum because her son barely sleeps and she needs help.
If you have a terrible pregnancy you could find yourself in a position where you are forced to start mat leave early.
Don’t abort if you don’t WANT to but be realistic about EVERYTHING.
The final thing I’d say is I have two autistic children. I adore them both and would have them both again without hesitation. But appointments, extra time for everything, understanding childcare solutions, good schools etc. takes its toll emotionally and physically and if you have to deal with all that alone it’s hard.
Having children is both predictable AND unpredictable. You need to be VERY realistic.