While it is a tad hard to say "exactly" my DPO because I wasn't having periods when I got my BFP...however, I got my BFP on a sunday and went to my PCP the next day and they did a blood test...my levels were at 33! So, I was either miscarrying or like 5 days pregnant! LOL....I went to my OB that Wednesday and my levels were 109 and I had a scan and my uterus was clamped shut, no space at all, liked like a completely unpregnant uterus, then Friday they were 323, so then end of the next week they did a scan and saw a little tiny yolk sac and estimated me to be 4 weeks. I had another scan 3 weeks later and it showed a perfect little bean with a heart beat that measured 7weeks 6days! Fast forward to 18 weeks and it's a GIRL.....So, you never know!!