Is there a baby in my belly?

Ok so ive read many of the other post about mayby being pregant and i need to know if i might be. I had my cervics opened the same week i was ovolation to boost my chances of getting pregnant. It is one week before my period is due and im heaving symptoms such as: sleepyness, boob soreness, mild cramping on my right side, odd cravings such as spicy foods and chocolate milk pickels and cheese, headaches, heart burn, nausea, massive mood swings, peeing every hour and a half and today a slight discharge but just very very light. My bf and i are trying to have a baby very badly. My brother is an obgyn and say my symptoms are of pregnancy and said i needed to go have a blood test done but i think its still to early i havent missed my period yet. Could i be pregant?