what could this be?

This is my first pregnancy so keep in mind I don't know the changes going on with my body.. but I am 5 months pregnant and just now I had this weird tightening stretching feeling in my pelvic area where my uterus is and I felt there and it felt like my uterus was up more than it was before I had this feeling and I'm like ok maybe the baby just grew and then I start having a shooting pain inside my vagina and where my uterus is is aching and my ribs are hurting so bad and my stomach is cramping up and my left side and lower back is aching is this normal? Just the baby growing? Or is this cause for concern? I know you aren't docs ladies so please don't be rude I just wanna know if any other mommas feel this as well