If you can just retake some exams and carry on with your A2's but requires a lot of work and dedication . I ended up with two C's in bio and chem so I'm retaking the unit one exams for both to push it up to an A in chem and a B in bio and do my A2 exams so I would have a total of six exams . but I'm also doing engineering which is worth one A-level and all coursework so I'm still hoping to apply this year for pharmacy ! So don't give up !