Hello,
Thanks for your query at DoctorSpring.com.
If you had your period, and are still due for your next one, the chances of pregnancy are very low.
It is common to have a high sex drive after your ovulation , which would have occurred a few days back.
Regarding the milky discharge, if it is not odourous , and there is no itching, then an infection is ruled out. Normally speaking too, vaginal discharge peaks before your periods are due.
I do not think that you are pregnant. What you can do , is still take a pregnancy test right away. That will help you to rule out the anxiety you are experiencing.
All the best.
Please feel free to ask for further clarifications.