Pregnancy is a possibility (going on 3 weeks, if I am)

I just want to know if anyone has experienced (dizziness for a few seconds, sore throat the day after sex, extreme tiredness (can't stop thinking of sleep), fluttered and cramps in lower stomach, one morning I had a cramp on my right side so sharp I was almost in tears and it lasted for approximately 15 minutes as I could not move.. as I type this I feel as I suddenly caught a cold and usually my immune system is very well I don't catch colds)

Is this good signs :)?

No, this does not sound like any pregnancy signs.

My wife had similar symptoms before she got diagnosed with gall stones. Go to your doctor and get a serious daignosis. It could be a hundred different things and many of them REALLY serious too.