My girlfriend had her period march 20th and we had sex yesterday (april 1st) and I think but im not sure if she was ovulating or not, I wore a condom the entire time and didnt cum, I stopped before I would. After we were done I went to the bathroom and took off the condom, I saw what looked like precum towards the ring of the condom. Im not sure what to do if I should be worried or not, I was told to purchase plan b and give it ti her by tonight but im not sire of I should or not, someone please help me..