Thank you for your query.
An overdose of caffeine definitely can lead to headaches
, as can stress
Also, relying on mere vaginal discharge
to diagnose pregnancy
does not make much sense.
A thick sticky vaginal discharge often occurs around the time before periods also.
If you have missed your period by a few days and your cycles are regular, please take a urine pregnancy test to be sure of your pregnancy.
Meanwhile, it is better to avoid excessive caffeine intake till your diagnosis is confirmed.
Do not stress out unnecessarily when there are means and ways to find out if you are pregnant.