Paki-explain po kasi hindi ko maintindihan

single meaning 1 baby lang then cephalic meaning ulo ang nsa ibaba.. 25 weeks aog or age of gestation, weight nya 740grams. placenta po posterior ibig sbhn nsa baba, ok naman un. grade 1 normal din then sa susunod na mga trimester magging grade 2-3 yan. yan ung maturity ng placenta. 144 bpm or beats per minute, tibok ng puso ni baby. as long as more than 100 ok pa yan. then 7-23-2020 edd or expected date of delivery, yan pong date estimate based sa 40weeks from first day of last mense nyo po