Coil removal

Ashley
Hi all
​I had my coil removed on Saturday and had unprotected sex on Sunday. What are the chances of getting pregnant? Anyone had any experience of this?
​I did not have periods while on the mirina coil for 5 months and before that I had the implant and again no bleeding.
​I'm worried I've messed up my body and it's gonna take ages to get back to noal. 
​I bled slightly after removal and a little after sex Sunday. Have had some spotting on Monday but not sure of that's the start of a period or from sex? Any advice?
​I also did an ovulation test which was negative