Hi mummy, I'm 7months plus pregnant now and my first born is 14 months old too. It is VERY tiring because my son is so active and I can't carry him nor chase him around. I have a helper but she only takes care of him when I need to sleep or rest. You will need help when you get bigger. My husband helps me alot too. I always make sure there's always 3 people, including me, to take care of my son. I hope you can find the help that you need because pregnancy is supposed to be as stress free as possible and keeping yourself healthy is vital. Good luck!