Increased exercise but increased footd consumption to compensate.
Slowly cutting back on food, should also be back to 5 days a week cycle commuting as of next week, that'll help a lot.
At a rate of ~1 lb/week I should only start to worry near the end of May if I want to hit my PBP target. This coincides with the insanity of 600km in Devon and Cornwall, so I hope to be a bit lighter by then anyway. (And April will have ~1000km of cycling...)