Why do I have watery discharge and itching post-period?

You may have a hormonal abnormality or gynecological condition that is disrupting your menstrual cycle. You should see a gynecologist for in-depth screening and diagnosis. Based on the underlying cause of your symptoms, specialist may prescribe additional tests or treatments.

If you took a double dose of the pill on a single day and then accidentally didn't take it for two days, keep in mind that the contraceptive pill will not be as effective as usual if you miss some, though. You may notice a spot, sometimes bleeding, or a conception of pregnancy in your body. In the interest of safety, take your pills at the same time every day and, in case of doubt, use additional protection with prevention against sexually transmitted diseases like condoms for the next seven days. 

There is still a risk of pregnancy even if ejaculation doesn't occur inside the vagina. Pre-ejaculate fluid, also known as "pre-cum," can still contain sperm and lead to pregnancy. Get a test done to confirm about pregnancy.

In a normal menstrual cycle, ovulation usually occurs around 14 days before the start of your next period. Since your period date is May 17, you can estimate your potential ovulation date by subtracting around 14 days.