Hi ive been on cerazette for the last 3-4 years with no problems, the occasional spotting every 6 months or so, but nothing requiring a pad. though since saturday i have been bleeding, not heavy, but enough to use a pad. Will this last a long time? my main concern is im going on holiday next week and i really dont want to be bleeding. im 29, 5ft9 weight 170lbs. thanks