My LMP is 26/7/17 but I did a home pregnancy test on 29/8/17 and it was negative may be because my periods were irregular. I have seen egg white kind of discharge on 26/8/17 means at that time I was ovulation. After that I did a home pregnancy test on 15/9/17 which was positive. Then a USG done on 2/10/17 at that time my baby is of 7 weeks. And according to that my date of conception is about 27/8/17. My 2nd USG done on 15/11/17 according to that my baby is of 14 weeks. My 3rd USG done on 23/1/18 but according to that baby is of 25 weeks 6 days. So my first question is my baby is exactly of how many weeks? Is his growth fast? And reports of last USG is :- Cephalic presentation FHR 153 B/M BPD 616mms corresponding to 25 weeks FL 457mms 25 weeks 1 day AC 191. 5mms 23 weeks 6 days EFBW 705. 29gms Placenta is in posterior grade 1 baby measures 25 weeks 6 days Please guide me about accurate pregnancy weeks. And is everything normal in USG reports and what are the chances of normal delivery till now?