I already read the above responsum. It seems there is someone to rely on if one wants to be lenient (I usually am lenient in most issues as much as possible, for several general reasons), but I don’t always know where it’s appropriate to be lenient and where less so. According to the conclusion there, one needs to ask a rabbi. That’s what I’m doing. I’d be glad if you have a clear-cut ruling of your own.
Thank you very much, and sorry for the trouble.

The Holy One, blessed be He, agreed that His name be erased in the water in order to bring peace between a husband and wife.
Perhaps all the more so regarding a purity check for someone who in any case has the practice of adding seven clean days after the check.
In any case, it’s also not clear that one must continue abstaining for so many days.

I don’t provide that service. These are the facts, and you need to decide. That is my approach to halakhic ruling in general.