Pregnant with IUD?

So i plan to buy a test soon but I’m just anxious. So i have been on kyleena for 18 months now and always got my period regularly on the right date. I was supposed to have my period about 20 days ago and still have not gotten it. I have had some cramping that feels more like contractions sporadically and I had a (TMI) pinkish tint to my discharge before my period was expected. I’m also ready for bed at all times and my breasts are sore to touch. I have been dealing with depression due to a break up so maybe that could be impacting my cycle. I have had unprotected sex in December and November. I’m just wondering if anyone has experienced this while having an IUD? Has my period just stopped ? Possible pregnancy? Any thoughts are helpful. Of course i will go to a doctor i have just been so busy lately.