I’m out AGAIN

I’m 12 dpo. Took a pregnancy test this morning, and not even a chance of a line. I really thought this was my month. I bought pre-seed and we used it. All I can think is maybe my LH surges are the cause. My fertile window week I test and test and test and I get all negatives until cd 11 I’ll get a peak. Or I’ll get one high on cd 10 and then cd 11 I’ll get a peak. That’s weird right? To get all negatives and then get a peak? I’m just not sure what I’m doing wrong. AF due May 4th.