I am having weird cramps since Wednesday. I ovulated Monday and It feels like I am on my period, but…

I am having weird cramps since Wednesday. I ovulated Monday and It feels like I am on my period, but it should start in 8 days. Its accompanied by nausea, but that's not uncommon for me though, heavy breasts, sleeplessness and fatigue. I don't think that I can 'feel' something this early, but did any of you experience this too and was pregnant? Oh and plus, I am sooo moody, for no good reason, I'll just snap at hubby. I am usually not that of a drama queen 😁, but this weekend I was all over the place.