I think I might have some early preg symptoms!

I've been feeling a bit nauseous (ovulation was on the 5th) exhausted, and today I noticed a muscle strain in my lower abdomen when I was getting suddenly a couple times. Then I remembered that I had that same muscle pulling feeling when I was pregnant with my last child around this time in very early stages of pregnancy! I had even journaled about it! Add that to the nipple soreness and my emotional changes I think I might be pregnant! Trying not to get my hopes up and trying not to think of testing yet, but I know my body and I've felt all this with my two previous pregnancies! Anyone else have the feeling they might be pregnant??