Do I have breast hypoplasia? What can I do to correct this?

You do have hypoplastic breasts but you are also a very good candidate for a breast augmentation.  There is a great deal  of misinformation circulating about the safety of breast implants.  Schedule a consultation with a board certified plastic surgeon with a lot of experience performing implant surgery and take the time to get fully educated about the risks ands benefits of implants.  In some cases breast augmentations can be performed using a patient's own fat but, looking at your photos, it would appear as though you don't have a lot of fat to harvest for this procedure.

There are a lot of rumors about breast implants out there causing this or that problem.  Most plastic surgeons are comfortable with silicone implants, but questions remain as to what problems they might cause.  I use mostly saline implants because there are fewer problems, fewer uncertainties, and better peace of mind.  Ultimately the choice is yours and you should make the decision that you feel comfortable making.

A breast augmentation is probably the best and most reliable way to add volume to the breasts.  There have been no proved health risks with breast implants which is why they're approved for use by the FDA.  I recommend discussing the risks and benefits of a breast augmentation with a plastic surgeon.