This question makes no sense. Please rewrite so it can be answered.
You work out how long it is since the FIRST day of you last period.
If you can remember the date of your last period they should be able to work out your due date and from that they can work out when you conceived. However, if you can't remember the date of your last period, ultrasounds and measuring the size of your bump can be used to work out how far along you are, so you can work out roughly when you got pregnant
No, because you did not have it. Therefore the period before that one was your last period.
You should get your next period , about a month from when you got your last period.
I think you are going to have to go with the ultrasound on this one.
You should go by your last normal period.
If my last period was on the first of December when is my next period due?
The scan date is from your last period.
I meant making that your last period
i know when my second last period was when am i due?
Cretaceous
It's roughly 2 weeks after your last period finished up until your next one starts