Quoting Destiel:" Yeah and also I have a horrific chest infection at the moment (not the way I wanted to spend my two ... [snip!] ... with which I had planned to paint my house). So I'm feeling pretty miserable and had to much time laying around worrying."
I think you're aware that your anxiety about money is the root of all this. You're worries are normal, yes. But the level and consistency in which you worry isn't. Because regardless of whether you've been pregnant or not, working full time or not... you have consistently worried about this to an excessive level.
I do agree, being sick is probably making your anxiety worse. You will be fine, from what you've discussed about your plans/budget and work commitments on here, I'd say things would work out regardless.