Should I approach her again?

I (24M) had my eye on this woman at the gym, she looks to be about my age. I approached her today and said “hi” with a wave. She said hi and waved back but then went right back into exercising then left. As soon as she started exercising again, I walked away. Granted, she was on the ground doing sit-ups, in hindsight I’m realizing that probably wasn’t the best time to approach her but that’s what I did. I don’t want to bother her or make her feel uncomfortable around the gym or me. I just think she’s really attractive, man. Like one of the most attractive girls I’ve ever seen in my life type thing. Seriously. I’d really like to take her out and get to know her better but I don’t wanna seem like a creep. I’ve never really approached women in the past but after seeing her, it made me want to change that. Should I approach her again (in a better situation, of course) and make conversation or cut my losses and just leave her be? Any advice would be greatly appreciated.