Mini pill and possible pregnant

So I’m almost 3 months postpartum and I’ve been in the mini pill since 6 weeks post baby. I breastfeed daily but supplement with formula too. My period was due yesterday Sunday March 22nd 2020. No period. I felt like it was coming on though. I took a pregnancy test Thursday and negative. I’m about to tAke another test... I’m so nervous. I really don’t want to be pregnant so quickly And with the coronavirus pandemic around. 🤦🏽‍♀️😩😩😩🤦🏽‍♀️ my husband and I also have a 3 year old. I know it must be taken in a timely matter which I’ve done.