is a progesterone
containing iud. It sometimes causes ammenorhea i.e no menses when used. So i would like to know when you had your last periods. That would decide more if you can get pregnant now.
Since you have removed your mirena on 14th of this month and you have been having on off bleeding it means it is due to hormonal
I suggest you wait for your periods if it is due depending on your last menses date. Wait for a fresh cycle after removing iud.
Chances of pregnancy
are maximum if you have contact with your partner during 10th to 16th day of your cycle. (1st day of your cycle is when your menses start, from there you count your 10th day)
After using hormonal iuds like mirena, menstrual irregularities are common for first few months. But dont worry as it doesnt mean you cannot conceive. Its just that chances are more when periods are regular as it indicates hormonal balance.