I came off the pill in june and went onto Implanon (the rod in your arm). They warned me my periods would be potentially 'irregular' thereafter, but I didn't realise this would mean anything from 3 days of the stomach ache with no bleed (first one) to two weeks of solid bleeding (out of 3 weeks of my recent holiday, natch). Someone definitely needs to Invent Better Stuff in this regard.

Regarding the depression I can't advise only offer sympathy and potentially Hot Tea (although possibly not from this distance). As a non-sufferer I can't imagine not being able to snap myself out of it with a stern talking to, so I'm useless at empathy for this kind of thing. Which is nice for me, but no use at all to you. Sorry!