Starting to freak out!

So I'll start with today would be my last day of my period. If I had started on the 24th. I have taken test and they have all been negative. I went in to see the doctor for yearly on the 19th and she did a scraping could that set my this far back? The doctor advised me to take prenatals if we were trying and we are so I am and I started that on the 19th. Could that have an effect? I wanna think it would but I guess I don't know. Give me some input ladies. Thank you