Can rubbing the clothes with sperm on the finger cause pregnancy?

Hi doctor,

I am a 21-year-old male, and I was intimate with my girlfriend, who is 20 years old. We did not have sex but rather had mutual masturbation, and I finished first and instinctively was trying to help her. I am worried that though my hands just rubbed on her clothes, there might just be a tiny bit of sperm on my fingertip. I realized it almost immediately, and we stopped. I made her take an I-pill almost within an hour. The problem was that she might have been ovulating the same day, and we were unsure if the I-pill would still work out or not.

After about 10 anxious days, she got her period. The flow was quite heavy, and she filled up roughly two to four pads each day. It lasted about six to seven days. Now, it has been around 20 days, and as her period dates are starting to come closer, I am becoming more anxious day by day. Is there any chance that she could get pregnant again?

I have had problems with my anxiety around five years back, but it went away. I had health anxiety and was worried that my heart was going to give up, but it was just panic attacks. I think I still have some of that anxiety creeping up in other ways, and this might be it. Please help.

Thank you.