Is this a positive?

My husband and I lost our first child at 6 weeks in September. I was sent home to naturally miscarry and then went for follow up blood work to check my HCG levels until November 22nd when they finally hit zero. I got my first period since being pregnant a week and a half after my levels hit zero. Per this app, I was supposed to get my period the 28th and have not gotten it yet... I just took these 3 pregnancy tests and now my husband and I are trying to figure out if they’re positive or not? Please help! Thank you all!