Oh. Just read there is some sense that your boyfriend isn't happy and is unwilling to give up his party lifestyle to be a father.
Hmmm.
Being a single mother is incredibly hard. INCREDIBLY. If you and your boyfriend are on the same page and happy, fine. If you are not, and your mum knows this, I can see why she is (very justifiably) upset.
You need to look at your motives for having this child. If it's to fulfil some kind of family fantasy with your baby's father, I think you need to do some hard thinking. I can almost promise you that if he is unhappy now, it will only get worse with a newborn in the mix. They're like little bombs. They explode everything in your life. Only a relationship that's nuclear bunker-strong escapes unscathed. Having a baby ended my marriage, and I was 30 and had been with my son's father for 12 years. Please please please do not underestimate the stress this will put your relationship under.
If you're happy to be a single mother, I'm still happy for you. You're choosing an incredibly hard path, but that's cool. Nothing wrong with hard work - and it's also incredibly rewarding. But your mum will understandably be freaking out.
If you believe this will end in happily ever after - I'm sorry, I don't mean to sound old and cynical, but all my experience shows that warning bells now become shrieking air raid sirens when they baby is born, you need help and support and your bloke is off to the pub every night leaving you home to hold baby.