Diabetes and pregnancy does not mix

So I am 3 months as of today which means 6 more months to go. I was already to be 3 months or 12 weeks because I thought that ment I was done with the 1st trimester and going into the 2nd trimester this is not the case I won't be out of the 1st trimester for 2 more weeks. Anyways on to the title so I have a pump for my diabetes which gives me my insulin every hour well I change my pump every three days and the pump can hold up to 300 units here is my issues I go though almost 300 units in two days because this baby is hungry 24/7 and I don't want my sugars to go though the roof so I shoot for everything I eat and it takes a lot of insulin so I go though stuff a lot anyways that's all I have to say for now.