Lost...

So I am pregnant with our 3rd child. My son is 6yrs. My daughter will be 11mos when our baby is born. I'm am so lost on what to do about car seats in our car. I have a little hyundai accent, and right now we can only fit 2. Idk if I'm going to have to get separate carseats for the car and then have one for the stroller. I plan on buying a stroller that can have a toddler and baby. Idk what to do!!! All I hear is more money lol.