Okay so I went in for my first ultra sound because I insisted that they do it since I didn’t know how far along I was (I’m irregular) I’ve had faint positive lines for the past 3 days and at the doctor there was also a faint line when they did my ultrasound they showed me what looked like a dot and said that it looks like my baby sac but because I’m showing up super faint positive that I might be just 3 weeks pregnant they want me to come back in in two weeks.. im a little nervous has this happened to anyone before?