It may be difficult to calculate when you conceived unless you know when you ovulated. Did you do any Ovulation Predictors (OPK)? Did you notice any implantation bleeding?
For me I know when we conceived since we were doing infertility treatments. For me last lmp was May 25th, conceived on June 8th and due Feb 29th. I don't have regular cycles.
No I did ovulation calculators and it said from the 5th the 11th but I had intercourse again on the 13and the 9th that's why I'm a little confused based on my lmp and days in cycle my due date is march1stbased on the u-s it's march 6 and I really really wanna know
i would go by the measurement of the baby. you could have ovulated late than you thought, and/or maybe the baby implanted late