CRM that calculates and recurs tasks by full weeks

I'm looking for a CRM that is capable of calculating the first full week (aka Sunday to Saturday) of a month and having task recurrences be based off of these full weeks instead of the days of the week (such as every second Friday).

This is because my tasks are scheduled by full weeks of the month. So for example in May 2024, since May 1-4 were Wednesday to Saturday, that was not a full week. The first full week of May was May 5 (Saturday) to May 11 (Sunday). In this case, setting a task to recur on the first Wednesday of each month would have set it to occur on May 1 which would have not worked for me since I would need it to happen on the first Wednesday of a full week, not just the first Wednesday.

Preferably this would be a feature in the base software but seeing as it's sort of a niche request I also wouldn't mind if it was only achievable through a custom app using the API. I'm currently using ClickUp but was told that there is no way to do this on ClickUp even using the API.

Thanks in advance, I know this is an uncommon request but any help would be appreciated!