Regular cycle length on Clomid

For those of you who have been on Clomid a few cycles, are your Clomid cycles about the same length? Off of Clomid, I’m super irregular. My “usual” for the few months leading to Clomid was 35ish. Last month was my first Clomid cycle and it lasted 29 days. The closest to normal I’ve EVER been off of BC. My question though, is should I predict my period off of that then? I’m not sure exactly when I ovulated. Based off of blood work it was a little later than I initially thought. I’m now CD 30, with nothing. Sunday through Wednesday I felt like af was coming. Moody, tired, crampy. Now today I feel totally normal! Never got any spotting, but did get a bunch of ewcm for all of Tuesday. Not sure when to expect anything? Negative hpt as of yesterday. How long do I wait before calling the doc to start round three? Thanks y’all!