applying for WIC?

La
Ok so here's the backstory. I make close to 6 figures. I am a single mom. Rent is VERY high in my area (I have a one bedroom that is $2k/month) and after all other expenses, money will be tight regardless of my high single salary. 
That being said, people have told me to apply for WIC regardless. I feel a little weird trying for aid when my salary is so much above the eligibility requirements, but I'll take what I can get if I can get it. Wouldn't you?
My question is: is it worth it to try? And if I do it, do I wait until baby is born or before? 
TIA