Should someone making 50k keep using RRSP?

I manage the finances in our household and looking for advice. My partner has started her career just over a year ago. She isn't elligable for RRSP match yet at her work till year 3. She has maxed out her TFSA already and has been putting 500 a month into her RRSP (13%). I'm starting to second guess our decision though since she's in a low tax bracket right now. So either we keep contributing and just carry over the contribution till she makes more money (is there limits to this?) or we open an unregistered account and put money in there instead?

Any advice is welcome thanks.