Pregnant?? 😳

I had my first postpartum period 1/19-1/24. Went to the doctor on 1/25 and restarted birth control pill that day. On 1/30 hubby and I had sex and the condom came off. We were told to use condoms for the first week while back on birth control. Based on my app I ovulated Friday. I guess I’m just freaking out that I might be pregnant again although I had 4 days of birth control already. Hubby keeps trying to reassure me that I’m not pregnant. I just need to vent and need time to speed up to 2/16 which is what my app shows as the first day of my period this month.