Ovulated early? Chance of pregnancy?

Hey! So my period ended last friday, we had unprotected sex last saturday and sunday. We are actively trying for a baby for the 1st time. My plan was to have sex again Wednesday, friday, and sunday(predicted day of ovulation). I have noticed that i have had the same headache and neck pain for 2 days now, really hungry and thirsty, tired and a little bit of white discharge. Did i ovulate early? I had sex the day after my period ended and the day after that. Chance i could be pregnant? I plan to keep having unprotected sex through my predicted ovulation day(this sunday) to make sure i have a good chance of pregnancy! What are your thoughts? Did i ovulate early? Is there a high chance i could be pregnant from only 2 unprotected sex days? Thank you.