My husband and I have been TTC for about 16 months now and we had sex three days ago and I am having some pretty crazy symptoms! I think I may be pregnant but I didn't think you could feel it this fast. Two days after ovulation my breast were sore and I have had cramping and light pelvic pain for the past three days. I have headaches that aren't super painful but they make me feel incredibly tired and dragged down. Has this happened to anyone??