Hate my saggy boobs

I used to have perfectly perky 34C boobs until I got pregnant. While pregnant,I started getting this horrible back pain that I mostly stayed braless during pregnancy and later while breastfeeding. Now I'm almost 3 years post partum, and I hate my saggy boobs!!

It scares me thinking what's gonna happen when I get pregnant with #2, and later when I age.

I don't even know how much sag is common post pregnancy! Is my sag really bad ? In the online charts, my sag is "moderate" as my nipples still face up

But I find my boobs so deflated and unattractive!!

PS - my husband is amazing and doesn't care what they look like. It's mostly for my self confidence.