New here and hoping for some answers!

 Hi everyone! I am 27 years old. I've had type 1 diabetes since October 2005. I have two daughters ages 4 and 2. I have a few different things going on right now.... I just recently started using an insulin pump (got it last month), have hypothyroidism, have had the IUD Paragard for two years, and my period is late. Late to the point of concern.

I have a question regarding blood sugar levels in early pregnancy. With my first three pregnancies (my first ended in miscarriage) I only noticed my levels being simply high. I've been experiancing unexplainable low levels for the past few days. Is that common? I know that some women have low levels a few days before their period starts but I've always been the opposite. I always knew I was going to get it because of my levels being higher.

I am going to be taking a home pregnancy test tomorrow because I'm also concerned about having an ectopic pregnancy because of the IUD. I'm not having any symptoms associated with that yet but it's definitly a possibility.

Here's a list of my symptoms(if anyone is interested):

missed period
weird blood sugar levels (with no change in diet or insulin intake)
frequent urination

I've lost weight since going on the pump (15 lbs) so I'm thinking that could explain the late period? Thanks for taking the time to read this!