That happened on my 2nd pregnancy, ges sac pa lang on the 5th week, nag reco si ob repeat transv pero sa 7th week to check kung nagdevelop na into fetus, on my 3rd and current pregnancy, 6weeks and 5 days ako nagpa transv, may heartbeat na si baby. Better consult pa din po sa ob para sa professional opinion, crucial po ang 1st tri ng pregnancy kung magpapacheck up pa lang po kayo sa 4-5th month, late na po masyado
Masyado na po matagal yung 4-5 months po. Maganda mamonitor kayo ni baby. Minsan po talaga too early kaya hindi pa makita.