Swollen and sore breasts, ovulation or early pregnancy?

IT CERTAINLY COULD B. Either, depending on when your next period is due.
Timing is everything. At what point are you in your menstrual cycle. During the pre-menstrual time frame - breasts can become engorged and swollen. If you have missed a period, it is time to take a pregnancy test now.

Related Questions

How early after ovulation can I have pregnancy symptoms? Like sore breasts and morning sickness?

It can be. Hormone changes that accompany ovulation can in some cases mimic early pregnancy symptoms. A healthy diet may often reduce some of these symptoms. If they persist you may want to see your doctor. Read more...
After missed LMP. Those symptoms are pregnancy hormone related(elevated estrogen and hcg) and occur about 10 days to 2 weeks after your missed last menstrual period.(lmp). Read more...

I'm 3 days late but usually right on schedule. Swollen sore breasts, extreme fatigue, bad acne, cramps, and white discharge. No + on test. Too early?

Careful of jumping, to conclusions. There are many possibilities & life is full of situations in which patience is fundamental to wisdom. Too early? Probably; patience best. Study: https://www.healthtap.com/#user_questions/6620568 & the process which have many stages, & variations, over time. Read more...

All of a sudden I'm getting sore breasts and cramps while ovulating. What could be wrong?

Likely nothing. These are common complaints, cycles often vary from month to month and over years. Keep an eye on things, look for patterns, likely nothing's wrong. Read more...