Positive OPK- am I too late???

Alison

Okay, so I have been testing every morning and it’s been very negative- then this morning bam super positive opk! My husband and I have been trying awhile, kinda burnt out from all the sex, so I was going to wait until I was close to ovulating this month. So my question is, if we bd tonight, am I too late? I feel so dumb for missing it this cycle 🤦🏼‍♀️