Brown discharge for a month, todays period day?

So I've been on the iud for a year. last month I had brown discharge for all month, then when my period came it was only normal for 3 days, today I was suppose to start my period but havnt. Sometimes it can be off by 3 days so its not to abnormal for me.

But the discharge last month was new.

I'm also having pms symptoms like break outs, hungry, head ache and I feel a little bloated, boobs are NOT sore but my nipples are. The sore nipples is normal for me ever since I got on birth control.