No I didn't get the option to use them.
On Tuesday I bought them then when Sunday came I went to Jessica's home.
It wasn't in my inventory nor was I able to interact with swapping them with her BC-pills.
I think it's a bug....
So you found her birth control and you didn't get a dialogue option to swap them out for the mints?
I don't remember having to interact with them in the inventory,
which visit are you talking about? I think it was the third one that used the mints.
I'm struggling with my memory, but I think it was
First visit Blowjob
Second visit Sex (and chance to switch the pills to knock her up)
or third visit chance to sneak into the bathroom first then knock her up
might have been a fourth visit in there really cant remember
Only visiting her on weekends doesn't help