Sharp pain between ribs, please help!

Last night I started noticing this awful pain between my rib cage/upper stomach. I've read about growing pains, and muscle stretching while pregnant in this area, but I'm only 15 weeks 6 days so the baby hasn't moved up very far yet, as its still in my abdomen. I'm very worried, as the pain has progressed slightly, and I can't lift anything even slightly heavy, and need help from my husband getting out of bed. He's going to take me to urgent care tomorrow, but I just wanted to know if anyone has experienced this? We just had our ultrasound on Wednesday and baby was fine, moving around and the heartbeat was a strong 147. I haven't had any severe abdomen cramping or any bleeding/spotting. I'm scared though that something might be seriously wrong. Please answer if you can!