Could I be...?

My husband and I had sex (withdrawal method) twice during fertile days. I'm fatigued, had three dizzy spells, bloated, and gained weight (even though tracking calories and exercising). I have watery discharge, which is abnormal, along with sore breasts, which is also not a normal symptom. My period is due in 5 days. I just can't get it out of my mind that I might be pregnant! Any experienced thoughts? :)