Mirena removal/TTC

Kr

I had my mirena removed a couple weeks ago, had my period at the regular time & am about to start ovulating this week. I’ve been having unprotected sex with my hubby, but I’ve noticed after each session I have spotting. This hasn’t happened before. The app said it could be an infection or a hormonal imbalance. I don’t have any signs of an infection & my hubby thinks it’s a hormonal imbalance since I haven’t been off the iud a full month. Did anyone else have that problem? How hard is it to conceive if you have a hormonal imbalance??