This section for questions about the Personal Plans but I'll go ahead and reply here. Any further questions please put in our swaying section if you'd be so kind.
Abstain is to not let your husband release (ejaculate) for a certain number of days before having an attempt.
People sometimes get confused by this because occasionally some people will say "cut off" as in "I am cutting my husband off from sex for a few days before our attempt". But this is NOT the proper meaning of the term "cut off". That is ABSTAIN, not cut off, and people saying cut off when they mean abstain is what makes everyone confused. For example, blue swayers using Shettles timing want to have their husbands abstain for a couple days before having one attempt at ovulation and this is the most common time I've seen "cut off" used wrongfully (but please, NO ONE DO THAT. I know Shettles says that sways blue, but Shettles is wrong. Having one attempt has been massively pink friendly. Do not have just one attempt for a boy!)
A cut off actually means to stop having unprotected sex 2-3 days before you expect to ovulate. This is a pink sway tactic - again, Shettles timing which has been debunked, but at least cutoff timing is not as harmful to your sway as having one attempt is for blue)
So to sum up - abstain = having husband not release for a certain number of days before attempts
Cut Off = Not having unprotected sex a certain number of days before attempt