"There are so many models and influencers that I’ve compared my own personal journey in 'bouncing back' to," Tisdale shares, noting that Instagram can be a major cause of these unhealthy comparisons. "And then, I’m like wait they just had a baby and they look like that??"
Her attitude changed when she was talking to some mom friends who recently had their babies and were comparing their bodies to her own.
"That’s when I realized we can’t compare our bodies to each other," she writes. "Everyone is going to have a different journey and it’s important to not communicate negative feelings towards our own bodies."
Tisdale ends the post by urging her followers, "Love yourself first!"
ET's Katie Krause recently spoke to Tisdale's pal, Vanessa Hudgens, who gushed about her becoming a new mom.
"I am just over the moon for her and Chris," Hudgens told ET. "I cannot believe it still, but I'm very emotional and very excited about it."
For more from the exclusive interview, watch the clip below.