Pre-Cum vs Birth Control

Hey ladies so I have a question. So I'm new in using BC and this is my second month. I'm on the 3rd days of the hormon free pills yet I haven't start my period (last month I got my period on the last 2 of the hormon free pills) anyway then we had sex yesterday, my husband always wear condom no matter if I'm on BC or not he just not trusting the BC but we run out condom yesterday so I told him just to cum in my stomach instead but then I felt a pre-cum when he was still inside and I told him because I felt it warm but he didn't think so. I was just wondering if I could possibly get pregnant because I was on my hormon free pills? I'm just so worried, not ready for babies yet :(