Could I be pregnant?

[Mommakab]

First day of last period was 26 Feb, lasted 4-5 days, cycle of 28 days. I ovulated 11 March (I know I did because I felt it, like I do every month), had unprotected sex with husband on the 12 March. Ever since, I've had nothing but cramps, I know it has nothing to do with period because usually get cramps a day or two before and then she shows her ugly face. No usual cravings for chocolate. Not sure if body is changing or could be preggers. This cramping is all to familiar though. Test was negative. But if I'm correct, I'd be 9dpo. Still to early?