Eggs would be much harder, simply due to numbers. One extraction generally results in around 12 viable eggs. Even if she went through that process multiple time

Eggs would be much harder, simply due to numbers. One extraction generally results in around 12 viable eggs. Even if she went through that process multiple times (not sure what repetition limits are), only 1-3 of them really have a chance to succeed through a pregnancy. After 100 years, there is little room for error.