@MisiSam have a look on YouTube before you cough up for paying for an online class, there’s lots of free resources on there.
How about painting the bath? Splodge some paints in, plonk naked child in, you sit with a cup of tea at the side? Bonus is you can turn the shower in to clean up the mess and the child!!
If you’re worried about ruining the carpets a large cheap shower curtain and an old towel helps, I rent too and I find ours invaluable.
My son loved sorting things at that age, so a selection of stuff to put in a box almost like playing post office, pulling things out of boxes too, old tissue box filled with flannels, poke lolly sticks in for him to pull out.
Bun tray half filled with bits (pasta, rice, cereal) and some spoons, pan drum set- the pans and some wooden spoons. Have you got a spare under the bed storage box? They’re good for splashy water play as they don’t need much water in them.
Silver foil blankets he liked at that age, making dens (just a blanket over a chair!), gathering loads of books up and getting into my bed to read (bonus activity when you’re knackered!) playing dens under your duvet, bubbles are fun, we have a machine and will turn the lights off and hunt bubbles with torches out or play music and dance in them, try and catch them.
A key thing to bear in mind is that because their attention span is shit you don’t want to be putting too much time/effort/resources into it, especially when pregnant, or it becomes really disheartening when they’re not interested or only play for 30 seconds.
Sorry for shit typing/formatting, feeding DD and typing with left hand on my phone 