Darren,
It sounds like you have your hands full with your young family. I would say fit it in where and when you can as consistently as you can. The key is to try to do something rather than nothing. Kettle bells would be great if you have them and you don’t take out one of your kids while you’re doing them. 😉. When I was recovering I downloaded a Tabata app and did 8 different things for a period of 50 seconds with a 10 second rest (4-5 cycles). Everything from planks to sit-ups to fore arm curls. This helped me to get stronger while I recovered. Keep it up! Stay positive! Be optimistic. Good things will happen!