If you have a ride planned but have a pants sleep the night before and get up feeling like a zombie – force yourself out on the bike. You will feel much better and will enjoy it. Sometimes both Mum and Baby are miserable for one reason or other, it makes a big difference having a happy face in the house, even if you do feel a bit guilty for leaving them to it while you enjoy the great outdoors.
As others have said, work with your partner, communicate effectively (easier said than done when both horribly sleep-deprived) You will find a compromise where you ride enough to keep you happy whilst still having time to provide enough support for her. I ride as much now as I did before both of our kids came along, they’re now 18 months and 4 years old.
One other compromise to make was on the n+1 theory. I now have a full suss, an xc hardtail and a BMX. I can’t afford any more bikes, nor do I have the time to build any more, or the space to keep them!