Possible to be pregnant with Copper IUD

Ab

I had the coil fitted August last year, the last few weeks I have been experiencing early pregnancy symptoms. Fatigue, all day sickness lower stomach feels heavy and swollen and i have sore nipples. Slight discharge with streaks of pink but other than that no bleeding. Ordered some pregnancy tests but won't arrive till tomorrow and can't get out the house for the time being..My question has any other women got pregnant on the copper coil and what happened. How long did people have to wait to test. Another baby was the last thing I wanted at the moment as have a 4yo and 2 yo but i cant ignore what's going on it's driving me mental. I feel so nauseous and have not long thrown up but don't feel ill at all just tired.

Thanks in advance.