I my pregnant

I guy I really don't know what to think about his my ovulation date is 14.i start testing when my period ended but I didn't see anything like peak test results I only had normal test because am feeling weak sometimes and for 3weeks am have heartburn alot my breast is getting big and nausea I urinate alot I make a test if am having line eyes I don't know is not my first baby is going to be baby number 4 but not yet my period am having cramps because is my time of testing ovulation