Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Usually if you miss pills, additional contraceptive method like condoms is advised during first week of starting the pack. As you said it is early to decide the possibility of pregnancy. So, if you miss your expected date of withdrawal bleeding, please go for urine pregnancy test once to rule out the possibility of pregnancy. The other possible causes are: Side effects of pills. Which can be dealt with simple analgesics. Mucoid discharge without smell is usually physiological or hormonal effect of pills. If you are not having itching, burning, staining clothes etc, the possibility of infection is less. But if you are having any of these symptoms or abdominal cramps, breast pain etc persist, better to consult your gynecologist once get examined and take treatment accordingly. Hope I have answered your query. Let me know if I can assist you further.