Sis, running Facebook/Instagram ads without a pixel installed is pointless. 

What is the Facebook Pixel & Why Use it? 

The Facebook Pixel is an essential tracking tool for your Website. Whether you are running Digital Ads on Facebook or Instagram or not, you need the pixel on your site to gain valuable information on users who visit interact with your site. Modernize your marketing efforts with the Facebook Pixel.

Facebook pixels helps: 

• Track conversions (purchases, leads, registrations)
• Increase Return in Investment for your business
• Understand your audience, who they are, and what they are interested in
• Deliver hyper-targeted Digital Ads
• Improve the quality of your Digital Ads
• Increased Facebook and Instagram performance

Please note Facebook AD account and your website must be already setup in order for the installation to take place.