Post Mirena HELP!

Hello!! So I had my Mirena put in on January 11th 2017 - 4 months after my son was born. Cue a MILLION problems. Had the wee booklet checking off the side affects one by one. Fast forward to Aug 10 when I FINALLY get it out (they “lost” it. It was traumatic. I cried for SO long)

My period still hasn’t returned 79 days later. I have gained 10lbs through co change in habits - if anything I’ve exercised more. I’m bloated to hell and I am fed up. I just want AF to start back up so I can get back to normal!

Any advice?