Am I pregnant?

I'm pretty positive I ovulated early , like right at the end of my period! that was on April 20th, I had sex that day when my period was super light and I had egg white fluid , and I also had sex on the 22nd . for the last 3 days, I have had on and off bleeding that has been mostly brown but their was some pink/red...could this have been implantation and I conceived?! I have also had constant mild abdominal/pelvic cramping, fatigue, dizziness, headaches, moodiness, frequent urination, bloating and my boobs are heavier and my areolas look darker to me ! How likely was i to conceive ?