Will my lack of further maths affect me negatively?

I took the same (got AAA) and I can tell you they're one of the best combos you can take when it comes to keeping your degree options open! They lead to a wide variety of interesting courses.

From what I know, further maths is usually only required for straight maths courses at prestigious unis, and I've seen it needed for computer science at Cambridge alongside step maths. I've also seen instances where you can receive a lower offer if you have further maths, such as at Leeds. You could replace chemistry or physics with further if you're interested in the lower offers (for maths courses), but keep in mind that, unless you take it as a 4th, subtracting a science will significantly lower your options.

Overall, I'd say it's safe to not take it, but it may be worth looking at some courses that do require it to check if you'd be interested in them.

Thank you and if you don't mind, did you happen to do an engineering course after A-Levels?

Starting Year 12 with Maths, Physics and Chemistry because I don't know what I want to do in the future. (Not medicine or finance).

If I choose engineering so perhaps, chemical, will I be at a disadvantage?

Those subjects are fine. Those who have further maths will have the advantage of having had already covered some of the material that will be taught in the maths modules, but not having it is far from being insurmountable, as a great many don't.

Thanks, I will stick with those 3 subjects then.

I actually have only seen F.Maths as a requirement for physics, computer science and maths courses but was also worried that I might be questioned as to why I had not taken it when offered the chance or maybe I am worrying too much.