you would have to wait til you get your blood levels checked at the confirmation of the doctor and or the first ultrasound will help narrow things down
Well the best thing to do is wait a week or couple weeks and go to the docter..and check to see if your pregant do a blood Test is Best! And Pray that your not..And Also you Can become Pregant from precum..So even though the other guy didnt *** in you.. there still a good Chance it can be his!!