I have been having the following symptoms:
Frequent urination(never use the bathroom this much in one day ever!)
Nausea(never had before)
Headaches(more than usual)
Fatigue( I typically have insomnia)
Mood Swings( I have always had good control over my emotions and now I cry over spilt tea, literally!)
Cravings(of food I cant stand) and sensitive to smells(when I normally am not)
Lower backaches( which have never been a problem before now)
My breast have gotten larger and other personal details

Plus many other things I have never experienced before hand! I have this undieing feeling, like an innner knowledge I am pregnant but I need opinions of others. Because I think I received my period, although it was not regular like all my other periods this one lasted two days and I was bleeding heavily, which I have never bled that heavy and I have always had a 5 day long period. My boyfriend and I had unprotected sex last month and looking back it was on my ovulation days.

Pregnancy cannot be diagnosed by symptoms. It's possible that you had an off period. We all have them at least once. You will have to wait until your next period is due. If you miss it, try testing with first morning urine when your period is about 2 weeks late.