Is this a pregnancy or sign of ovulation?

Alexandria • Baby # 2 in the making! Mommy to angel baby 💕👼🏻
It's been 5 weeks now since my misscarage and d&C, my fiancé and I start having sex the second week after, and unprotected I shall throw in, and these past two days I've had medium white eggy discharge and last week I had signs like if I was gonna start my period but nothing, just headache and feeling nauseous. Could I be pregnant, is that even possible?