Changing career/ professional path

Iulia
What's your opinion about changing the professional path as a woman in her 30s? 
I have a degree in liberal arts and I have worked mainly on project based jobs somehow related to my field. Then I got married and got pregnant. We choose for me to be a stay at home mom because even if I would've continued with my projects, we could've afford the money needed for a nanny / daycare. 
Now my son is almost 4, I am 31. I need to find some stable work to do, but I am scared that I lost many years of actual work experience, I don't have other degree and, honestly, I don't even know where to begin. 
Did you experience something similar? Do you have any suggestions for where I should begin? 
Thanks to all!