This thread is crackers.
You were doing an interview with your baby and animals on the call?
You won’t sell the house you own with your ex because of animals, risking your son having separated parents as a result? Whether your ex wants to sell it or not is irrelevant.
How many animals are there? Around a young baby in this house with no ceilings and a non-functional kitchen?
Why gave you not thought through the financial implications before having a child with a man you’d only known a year? It’s no good just shrugging now and saying “I can’t change it”. You need to acknowledge the irresponsibility so you don’t make further irresponsible choices, more of which you’ve still been proposing on this thread! And now you want to drop a bombshell on him that you want two more kids in this situation and have no intention of contributing more than a trivial amount of work and finances for ten years, and you think he’ll stick around?!
You’ve run up debt payments of £1000 per month? How much do you owe if at that level it will still take 4 years to pay off? What was this spent on?
This is totally insane OP, all of it. You really don’t sound mature or responsible enough to be a parent. It makes NO sense, and so many posters have told you this yet every suggestion they make you shoot down with excuses.
Either find a childminder or nanny who will do longer hours than nursery (or to supplement nursery so they pick up and do a couple of hours more care) and go back to your previous job, or you and your partner both find daytime jobs (I presume he’d be willing to make the change to daytime given you said he hates night anyway and this won’t harm his career, if it was part of a plan that involved you both working full time and building a decent life for your child together in a house with ceilings, where your ex doesn’t also live with a ton of random animals).
Many shops do not open until 11pm. You could look at retail management in one with shorter hours.
You can start a different career in another area of management.
You could easily have been doing study/ retraining part time already for something else while working two nights per week.
You could both work days.
You can find more flexible childcare with a nanny or childminder with longer hours if your hours overlap.
There are many, many options and burying your head in the sand and pretending the current situation is sustainable when it clearly isn’t and will destroy your relationship isn’t one of them.
Parenting isn’t easy and is a juggling act and childcare is expensive and necessary. None of this should be a shock. This is the EASY part in terms of childcare: it’s much harder with school holidays than with nurseries open 50 weeks per year.
I am a lone parent to two children with disabilities whom I have raised alone since they were under 2 and I’ve always managed to work full time to provide for them. There are two of you to juggle it. What you’re pretending is impossible really is not. It’s time to woman up and face reality and do what is best for your son (including not having any more children until you have a stable home and finances and a financial plan for how to pay childcare for two and manage working hours around childcare including, later, for school holidays).