Had Mirena Removed The 30th Of April Had Period 3

Had mirena removed the 30th of April had period 3 to 5 days later, started sugar pills stared spotting brownish blood had intercourse bright red blood, went away. didnt get a period during sugar pills since there not active can i get pregnant? Last Monday I started cramping and nauseated went away Friday boobs are sore to touch can I be pregnant?