Trying for baby#4

Hayle

So my fiancé and I are trying for baby #4. I have 4 & 5 year olds and he has a 2 year old. I had mirena from Jan 16-May 18. My periods are normal and I’ve been tracking my ovulation since having it removed. We obviously don’t use protection and I take Prenatal, Folic Acid, Evening Primrose Oil (supposed to help with fertility) daily. I know they say to start prenatals when ttc and it’s been 7 months of trying...anyone else have issues getting pregnant after having mirena/or any other iud removed? What can I do to help boost my chances of getting pregnant?