Nausea, upset stomach, and pelvic pressure 😩

So last night from 7 PM to 3 AM I couldn’t get myself comfortable. My back was hurting a bit and no matter how I positioned myself I couldn’t feel better. I also started getting really bad heartburn along with nausea and a stomachache. Not really pain but that type of uneasiness that gives you the chills. I also had about 3 trips to the restroom from it (normal bowel movement). Well I finally felt a little better after 3 AM and I fell asleep, but as soon as I woke up at 9 AM it started again. Same symptoms and the only thing that made it better was zofran and sitting up right. I’ve also been getting some more pelvic pressure but nothing like a contraction. I checked my BP and temp but it’s all normal. Could this just be from the baby moving around in there, or should I contact my OB about it? Clearly I’m a FTM and I just want to know if anyone else is going through this as well or if it’s something I should be concerned about.