I had my mirena removed 5-6 weeks ago. I spotted for a few days after removal. My ob gyn prescribed me a form of the pill and I started it right away with her approval. Well I finished the first month pack and no period. On week 2 of second pack and no period again. How long does it take for my cycle to get regular? I'm just worried because after finishing the first month my hubby and I started having unprotected sex. Now I'm worried if it's possible I'm pregnant..