do you think the discrimination towards working and pregnant mothers at work are real in singapore?

Discrimination is real. Company keeps delaying my promotion for a few years even after I have my kids even though I have resumed all my duties after ML. My direct supervisor is supportive of my promotion and I have a good performance rating. However, the promotion is constantly rejected by HR. When I spoke to HR, they questioned if I am able to commit fully since I have young kids at home.