What will the dr do?

We had sex for the three days leading up to the morning I got a positive opk. I’m now 7 days late for my period, and have only had negative pregnancy tests. I’ve had some pregnancy symptoms, but nothing too strong. I got off the NuvaRing in January, and my cycles have been clockwork since then. I have an OB-GYN appt tomorrow. What will they do? I know it may vary from doctor to doctor, but does anyone else have experience with this?