How to keep myself busy

My partner leaves me alone 99% of the time to play with his friends, film, go live, etc. and I’m at a breaking point with the loneliness.
I can’t go anywhere or see anyone due to lockdown so most of the time I’m just in a room on my own, I’m heavily pregnant so my time will be taken up by my son soon, but until then I genuinely don’t know what to do with myself, I can’t really be too loud either as it’d disturb him.
I’m so, so, so incredibly lonely and feel trapped, I know I should leave him but unfortunately I can’t do anything about that situation for a while, in the mean time I need to find ways to distract myself of what’s happening, any suggestions would be deeply appreciated.