Definitely don't want to be a damper on the thread, but you will have to consider other options to enter medicine. A2 Chemistry really is no joke, and the work you have for Biology requires so much time. There's a step up in difficulty from AS, you might be able to retake a couple other individual units, but any more than that and you'll be distracted from A2. With BCDD, unless there were extenuating circumstances, there is a reason for that. Be it poor time management, not revising in the right way etc. Your teachers will know this and aren't gonna predict very nicely. I got A(Bio)A(German)A(Classics)B(Chem) at AS, hoping to do medicine (as maths fortunately isn't essential). Predicted grades of AAB (dropping classics). Even though I had around 180hours of work experience and a better than average UKCAT, I wasn't offered an interview, let alone a place (fortunately I have a good alternative route in). The fact is that Med Schools don't need to waste a second more time on someone without the predicted grades. They look for any excuse not to take you thanks to course popularity.
Even if you somehow manage to retake every exam and succeed and get AAA next year (bear in mind it will make your year more than twice as hard as you found AS), you won't have an offer. That means you'll have to do a gap year, which, if you aren't doing something useful in the medical field, looks bad in the eyes of the Admission.
As others have said you can apply abroad (which I am doing and can give advice on if you need), or you can go post-grad. You'd probably have an easier time with the latter if you aren't bilingual. Find a course you can comfortably do for three years, and then apply to medicine once you have qualified. It will be expensive and you'll have a load of debt, but if you want it badly enough it'll be worth it. Sorry I can't find a way of sugar coating this for you.