What Causes Frequent Urination,cramps And White Mucous Discharge From Vagina?

I had sex before and on my ovulation date which was March 21 and 22. 2 days later I have been tired, cramping, peeing a lot, and have a heavy feeling in my stomach. Last night it felt like my period was about to come on but its not going to be on until the 5th of April. Also I had a white creamy mucus coming out today. Could I be pregnant?