It is very common for women to express sentiments of regret after getting an abortion. On the other hand, women never express regret for choosing to have a child.
Many women who go through abortions, particularly those that go through them at a young age, later express severe regret over the decisions they made.
Women frequently cite feelings of regret and suffer extensive psychological trauma over their decision to abort a child. On the other hand, very few women who go through with a pregnancy ever express feelings of regret after giving birth to the child. Quite the opposite, in most cases they feel relief that they never aborted the child.
If you actually look at the numbers, not just anecdotal evidence, you see a clearer picture. The overwhelming majority of women who have an abortion do not regret it later in life. A recent poll published in the academic journal PLOS ONE found 95% of women do not regret their decision.  Even if they did, it is not sufficient criteria to outlaw the practice entirely. Many women later regret taking up smoking or dropping out of university, but neither of these are prohibited.
[P1] Many women later go on to regret abortions and wish they had kept the baby. [P2] To protect women from this regret, abortions should not be legal.
[Rejecting P1] The majority of women actually do not regret their decision, many actually express relief. [Rejecting P2] Even if they did, mothers expressing feelings of remorse is not sufficient to outlaw something.