i had similar too. with the gradual lessening and a break and then a gush and again some bleeding. turned out that i had some retained membrane (most likely some amniotic sac as placenta was intact). my MW got me to book into the sonographer to have a look around. but they took a week and by that time it had cleared up by itself. my midwife did say to keep a close eye on it while it was happening and to keep a check on its smell, pain and if i have any temps (just to check for infection etc)