Mirena Help

I've had the marena for a little over 2 years now. I've never had any problems with it whatsoever. I completely stopped bleeding each month and sometimes had a few period symptoms like sore boobs, hormonal spots etc but nothing mad. Because I haven't bled in the last 2 years I haven't ever kept track of my periods and I now I don't have a clue about my cycle at all.

Recently ive been getting spotting for the last couple of weeks but it's not proper blood it's like some light pink/see through sort of discharge only when I wipe. I find this a bit strange and ive been cramping a bit and very bloated and the usual sore boobs. I'm 98% sure I'm not pregnant.

I'm thinking about having my merena taken out and going down the natural family planning route as I'm in a long term relationship and getting married next year (contraception, not ttc) does anybody have any advice or pros and cons for this? I'd just like to be in control of my hormones and know my cycle.