* BBT vs. OPK

Me and my husband have been TTC for a year and a half, I have always used temps and tests to see when I'm going to ovulate and they always match up. The past two months they have been 5ish days different! My husband had low testosterone and low sperm so we really have to make sure we're being smart about when we BD. The only things I have changed recently are that I started taking natural prenatals instead of one a days, and I started using progessence plus oil from young living. I'm just so worried that we don't even have a chance this month. 😭😭😭 Has anyone else experienced this before?!