So confused! Please provide some insight!

So little back story, I had a miscarriage in March. Before my miscarriage, my AF and ovulation was like clock work and so so regular so it was so easy to time sex, but since my miscarriage my cycles have changed. My husband and I have decided to start trying again and I am using OPKs and I’m temping. I had a positive opk on Monday and Tuesday and yesterday it was negative. However, my bbt chart has not indicated I have ovulated yet, so I took another opk today and it’s positive again. Any idea what’s going on? Below are the pictures of my chart and my opk from this morning. My husband is getting frustrated cause I keep telling him we need to BD and he doesn’t have the highest drive so it’s becoming difficult for him lol but it’s safe to assume we need to do it again tonight, correct?