Maybe give it a week or two and then go back?
Or if your gyno is anything like my gyno/FS then it can be difficult booking an appointment sooner than 4-6 weeks away!! So maybe it would be wise to book a "just in case appointment" either in 2 weeks or the soonest available if more than 2 weeks away. You can always cancel if AF knocks on your door.
Didn't mean to freak you out any!!
I just know there is things I know now that I wished I had the sense to ask about 2 years ago!