After mirena

So I got my mirena removed on the 23rd. I had it for almost 2 years. We have only had sex once but are ttc out second child. I am very very moody the past week, headaches, and I have also gained 2 lbs since I got it removed. I doubt that I am pregnant since we only db one time and that's before I got my period again and I wasn't ovulating. So I was wondering if it could have something to do with the mirena being removed and if anyone else has had that.