So I have been talking pregnancy test but they come back negative but I get sick every morning and I…

So I have been talking pregnancy test but they come back negative but I get sick every morning and I am always tired and my side hurts and it's hard so I don't know if anyone knows and has anyone gotten pregnant with a IUD🙂 thank you for the feedback from people on here it is very nice cause I don't know if I should go get a ultrasound or not.