So a little over two weeks ago I decided to remove my Mirena IUD to switch back to the pill because it was making sex uncomfortable. My partner and I had sex two times after the IUD was removed, without contraception, and I also hadn’t started taking the pill either. My period came back a little after the removal and once I started the pill. It “went away” so I thought. But now I’ve been having light spotting with a pink or brownish color. I’ve looked up implantation bleeding, iud removal spotting, and period spotting. All signs point to Implantation Bleeding. Any advice?