Could I be pregnant!

Has anyone ever had sex a day or two before they ovulated and/or a day or two after they ovulated and got pregnant? This is what I did and am wondering if I’m pregnant. I’ve had just slight cramping, acne and a lil fatigue. No tender breasts though. If I am it will be my 3rd child but my youngest is 4 so it’s been awhile. Thank you all so so much.