I’m so confused ugh🤦🏻‍♀️

Ok hi! I’m so confused lol! So I’ve had the Skyla IUD for almost a month now. I was suppose to get my June period 5 days ago and nothing. However, yesterday morning I wiped and there was blood but after that.. nothing. Today, this morning at around 4am I woke up to the most excruciating cramps I’ve ever had and sore boobs. I finally went back to sleep and woke up to pee and more blood. However, it seems like once I wipe it’s done. Is this my period? I’m so confused and new to birth control (this is my first time ever being on anything) and not use to having late periods. Did this happen to anyone else?