Hi guys long time lurker, first time poster. So 43 just had 4th FET this time using pgt tested embryo. 3 miscarriages & a few chemicals later. So my HCG results are confusing the hell out me. 14 days after 5 day transfer (19dpo) HCG came back at 1285, two days later 3816, however 4 days later only 7123 (5weeks +4) - it seems to have slowed right down - has anyone experienced this before? Clinic are telling me that it doesn't need to double but everything i've read seems to say that HCG needs to double every 48-72 hours. 8 week scan is two weeks away.