Ovulating

Hey ladies. I believe I am ovulating. Today is one day of the few days that I have a chance of getting pregnant. I had my menstrual cake from March 15th-March 18th. Since then my boyfriend and I have had sex every other day since the last day of my period. We do have unprotected sex because we are planning the pregnancy. The most recent was Monday at 12:45am. What are the chances I could pregnant and when should I take a pregnancy test? Like I mentioned i think I’m ovulating and we had sexual intercourse on Monday at 1:00am. I understand sperm lives in the body for a few days. Will the sperm from Monday be alive to where if I’m ovulating and release a egg that I can get pregnant?