Would a lift look like this? (Photo)

From the submitted photos it does not appear that larger implants would be needed. A lift (assuming you have a standard lift and not just periareolar) will remove excess skin and raise the position of the nipple. The result will be an improvement in shape and ptosis.

Dear newgirl14,
based on your photos, it looks like you would benefit from breast lift. My preferred lift is a lollipop lift when a periareolar won't do (ie greater than 2cm lift required). The lollipop technique was created by a Canadian plastic surgeon named Elizabeth Hall-Findley and treats the breast as a three dimensional structure instead of two dimensions (anchor - lift). Most importantly it does not require the horizontal component scars that the anchor-lift requires and breasts appear much more natural, lifted, and less boxy. Lastly, the lift lasts longer because the lollipop doesn't rely on the skin to hold the breast up, its actually breast tissue thats being brought together to support the breast and hence improves longevity.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Don't go bigger or you will just sag sooner. Do the lift. If you want the lift to last, Go smaller so there is less weight on your tissue.