What were your early signs of pregnancy?

Wendy • first baby girl on Aug 14,2015. Born at 29 weeks. I developed pre-eclampsia.
This waiting is killing me! We have been TTC for awhile and I'm wondering if maybe this time we did it! I've been having light cramping pretty much ever since we had sex last Monday (which was during my fertile time). My nipples are a little tender, but other than that, that's it. I'm still about 9 days away from when my period should start, so I can't really test yet. But the anticipation is killing me. What were your early signs of pregnancy? Usually I can feel when I ovulate, because it feels like light cramping for about 1-2 days, but this feeling has lasted much longer, so I'm feeling hopeful. Anyone have any insight? How early should I test?