TMI spotting

So I'm 5 weeks 1 day, and I've been spotting off and on for about a week. Mostly brown,a little pink, last night had a little bright red. But it always goes away then comes back but it's never a lot. Is this normal? Sometimes it comes with cramping, sometimes not. Sometimes it's after I have a BM or just sitting around. But it usually comes at work when I've been lifting (not too heavy) things. My appointment isn't until Wednesday so I still have 5 days to go :/