Gravid uterus?!

Crystal

So I was having some pain and they noted on my ultrasound that I have a gravid uterus has anyone ever had this. ER didn't make a big deal said baby boy looks fine but I'm a little worried I always feel like when I pee it's not as much as I feel it should b. Should I be worried I'm 17w 3d measured 17w 4 d heart rate was 158 any input would be appreciated ♥️