Yeah, it might be better if you could stay longer but hopefully if you can get the tickets for the talks asap you should be fine, also go on the tours they do give you a really good chance to talk to current students.
What are you current predicted grades? Read my post on your other thread, as tbh you only need 320 points ( this includes the points in your AS). If you think you can't get that, University of Central Lanchashire have started up a pharmacy course last year and they are only asking for 300 points. But I don't know how good the university or the course is, so I suggest you to research it yourself.