I don't have a cold sore, I have a spot. I touched my PJ shorts where my genitals are but didn't actually touch my genitals. Will I get Herpes now?

Unlikely. The herpes simplex viruses , both type one and type two, can cause both fever blisters and genital herpes and are very hardy viruses, however it is unlikely that you will transmit it that easily. They can be transmitted by oral sex though and there is risk if masturbating so do be careful.
No. the cold sore virus (HSV1) is completely diffenet from genital herpes (HSV2). HSV2 ( genital herpes travels in sexual scretions and blood)