Hi there, I just wanted to know I went for an ultrasound last week and…

Hi there, I just wanted to know I went for an ultrasound last week and nothing came up in the sonogram. The doctor only checked the pubic area. I'm supposed to be 9 weeks and a few days. I feel a ball-shaped thing in my right side abdomen under my belly button to the top of my belly button. It's firm. My stomach is really hard and big. What can I do? I've been researching a lot and saw ectopic pregnancy and abdominal pregnancy. I went for an IUI, got my period 12dpo but ever since IUI I didn't get my period normally. I'm so confused? I had the IUI procedure on November 1