Thank you for your enquiry. There is one unproven theory to conceive a girl is to have intercourse 1 – 2 days after you ovulate, rather than right on ovulation, that is a bit later in the month. It is not proven though but it may be worth a try. Good luck.
<a href="http://www.nswmidwives.com.au/">NSW Midwives Association</a>
Note: This information is not designed to replace that of your health professional.