Minor Car Accident

I need opinions without judgement please!!

I’m 17 weeks pregnant and yesterday afternoon I was in the car with my brother in law who accidentally backed up into a car behind him down a driveway. It was super minor so I didn’t think of it. I’ve felt my baby kick a few times since and using my baby Doppler at home a few minutes ago, her heartbeat was at 152. However, right now my lower back and pelvic area is kind of sore. We were also out on a boat all day long so I think being on that could have made my back sore too. I’m not sure if I should go get checked out tomorrow morning or not. Opinions please?

I messaged my OB on my online patient portal about it but I unfortunately won’t hear back from them until the morning. I’m just trying to calm my nerves until I talk with them