28 weeks💙

This is my second baby and I do t remember having this with my first but I'm pretty active I'm still working as a waitress and have a 4 year old son so I'm always on the go, when I get in bed it feels like contractions in my lower back. Maybe back spasms, then I feel like pelvic pressure like I'm dilating... Baby is super active does anyone know what I'm feeling? I don't see my dr till April 5th.