Sex and Exercise with Mono

Allegra
So I haven't heard back from the doctor yet, but it's pretty much decided that I've got mono. Lucky for me, I'm not even fatigued, I've just got swollen lymph nodes. Now I know that exercise is a no go, especially contact sports because of the risk of a ruptured spleen. Now, I don't even know if my spleen IS swollen, but I'm definitely going to hold off on playing soccer. 
My questions are:
Since I feel totally okay, can I do light elliptical cardio?
Is sex safe for my spleen? If it's not too vigorous?