I’m scared! Please help me

Hey! So my boyfriend and I, he fingered me near the end of February but now I’m late for my period for March. I know there is a rare chance that pregnancy occurs with fingering with cum on his hands. But him and I are like 90% sure that wasn’t the case. I was also spotting 6 days after the incident. I thought it was stress but I’ve never been late for a period.

I’ve been camping for the last few days but nothing has happened.

Thoughts? My mom thought it could pregnancy then said stress.

please help me