AF due on the 26th and had unprotected sex on the 12th (ovulation day) and the 13th (1DPO) been cramping and spotting and feeling back pain i came home today and slept for hours because i couldn’t get up without feeling nauseous. i usually never spot before my period and i usually get acne 1 week before my period, no acne, just back pain, slight cramping, and light pink spotting. is it implantation bleeding? could i finally be pregnant? been TTC for 2 years now with baby #1