Advice please.

Hi ladies, I removed my Mirena on August 18th after 4.5 years. I have not had a cycle in over four years. After removal, there was some spotting and might have been a light period for the next 6 days. I have taken two opk (yesterday and today) and both test the test lines were much darker the the control line. Is it normal to get these results two days in a row? Or could it be something else?