Question for SAHM

Moms who have been SAHM for years.. Did you ever have feelings of slight regret or pity that being a SAHM contributed to your halted career progression, and being more dependent on your other half to bring the bacon home? Did you do anything about it, or decide to go back to the workforce eventually? How hard is it to get back into the workforce and get back on track with your career progression, seeing your peers probably being much more ahead?