Whenever I am trying to conceive I try and make sure we have lots of sex just before , during and after ovulation. Generally this has meant we have unprotected sex 2-3 times over a 3 day period in order to maximise our chances of conceiving. I read that it is best to have some sperm waiting for the egg as it is released, which is why we do it just before ovulation, as well as during and after.
I am lucky in that for most of my life I have had a fairly regular cycle of about 27-28 days and find it easy to predict when I will ovulate. This is not as easy if your cycle is erratic.
On a very regular cycle you usually ovulate about 14 days before your period is due
if your cycle is 28 days long you ovulate around day 14
if your cycle is a very regular 34 days you ovulate around day 20
if your cycle is a very regular 24 days long you ovulate around day 10
You get the general point
Unfortunately many of us have erratic cycles & lifestyles ! My cycle has been different at different stages of my life.
In my twenties when I was young and carefree, it was a very regular 27-28 days every month. In my early thirties (before kids) it went down to a very short but thankfully regular 24 days. It was as if my body was trying to increase the chances of me conceiving. Three pregnancies later and in my forties, my cycle is now erratic & anything between 24 days and 34 days. I don’t even bother to write it down any more. It is so unpredicable now.