5 days late but not pregnant?

My husband and I are in the clear to try again after I got this period and of course it’s not coming...We’ve been animate about using condoms again however we did pull out once so technically there’s a tiny chance I could be press but after taking two tests, it’s saying I’m not...

We did start a rigorous 30 day workout challenge in Jan so that’s the only other reason I could think maybe that’s why I’m not getting it but this has never happened before and I’ve done this challenge before...

Any thoughts?...