Please help! 2 drops in luteal phase

Can someone please help me out? I’m thinking I Oed on the 4th (CD17). My temps are a little off because I haven’t been taking them at the same time every day (always same time throughout the week though), and it’s always the first thing I do even before sitting up or talking. I’ve obviously had a couple dips in my luteal phase, but yesterday I had brown discharge/spotting, very light and on/off. Was hoping my temp would rise today, but it actually dropped. I’m expecting my period on the 18. My question is, am I out? I was trying to avoid getting my phone up, but I thought the spotting was a good sign since it was too early for my period. Can anyone please help?