Should I?

So I'm finally on track again. It took me a lot of hard work and dedication to get back on nofap and to stop relapsing like I did so many times this summer. I'm feeling quite better with more energy and happiness. I feel like slowly, but surely, my desensitized brain is re-adjusting itself and going back to normal.

Hard mode was never a choice for me. I don't have a gf, and so if I don't PM, I don't O!

However, lately I've been noticing some girls being interested in me.

If the opportunity arises for me to have sex (or engage in some other form of sexual activity with a girl) should I do it?

I don't want to ruin my nofap progress but I don't know if this would set my recovery back or not.

Your advice would be appreciated, thanks!