Did you just feel different after becoming pregnant for the first time?

My husband and I have been TTC for four months for our first. That's not that long but we have had our struggles. Anxiety meds, sickness, stress and many other tiny obstacles. But we are staying as positive as we can and trying to be as patient as we can.

I just finished my peek ovulation time and this time it feels different than it has the last few months. It's too soon to tell but I think this is it.

I was just curious, how soon after conception did you sense you were pregnant? Or did you ever feel different other than your belly and breasts growing in the first trimester?