“IUD possible pregnancy? ER or doctor?”

I got an IUD implanted two years ago and ever since then lost my period. Two weeks ago while having the IUD I suspected I might have had pregnancy symptoms and took two tests (a week apart) and both came back negative. Then today I started bleeding like a heavy period and my abdomen is now puffed out and feels bloated or swollen. I took another pregnancy test a few hours after the bleeding started (had to run to the store) and it resulted in a faint positive very faint, I have a picture but don't know if I can send it on here. I'm honestly wondering if I need to go to the ER or is this something to see my regular doctor about tomorrow. I am in the middle of house sitting/dog sitting so obviously going to the ER is not ideal, but necessary if the case. I have slight pains currently in my lower abdomen/pelvic area.