Mirena taken out on March 23rd..

SERIOUSLY! I got my mirena taken out on March 23rd and she said I should start my period within 2 weeks. Well it's almost been 2 months...I asked a doctor and they said it could take up to 4+ months! What the hell. I seriously just want to start. We want to have a baby and I can't start to track my periods unless I start. This app is telling me I should start in 2 days. 😐 Have any of you had this issue?