not exactly, because u dont get pregnant right when u have sex, it could be 2 days later. sperm i think can live for moer then 24 hrs not posotive though. but if u only had sex ONE TIME u can get a good estimation of your due date, but it wouldnt be completely accurate. You dont automatically become pregnant when the sperm enters the vagina.

cool thank you

most likely the only estimation you would get to ur due date would be within like 2 weeks of the actual due date, if ur unsure then id go to the dr for an ultrasound to find out for sure.

cool its just i had sex on the 22 of march and hava due date of the 30th of dec bt i hada period on the 3rd of april and had sex two days after it finishd so i was told its unlikley that i wod of conceived two days after my period> this leaves me wondering when i wod of been most likely to have conceived?

you can not estimate your due date by when you had sex.

sperm can live for upto 5 days inside you at your most fertile.

with a due date of dec 30 you are most likely to have conceived on April 8.
this means sex during the 5 days prior to and including april 8 is the sex that likely got you pregnant. (4, 5, 6, 7 and 8 April).

who gave you your due date?
how did they estimate it? ultrasound? bit early for u/s not likely to see anything yet.

and it is very possible to get pregnant just after your period, in fact it is possible to get pregnant anytime as you do not know exactly when you ovulate. This is why we stress about using condoms all the time.

i got pregnant the week following my period , my due date was exactly the same as yours. by the german drs, but they wrote down my lmp as 26th march wich it was the 22nd march i beleive that i told the dr in florida before i left, they gave me the date dec 27th, i most likely conceived around april 5th. so by your period and due date i beleive they are quite accurate but i would get an ultrasoudn in june to confirm the due date. but its only an estimation anyways my daughter was born dec 25th.