Should I not go with a 7 year arm?

I decided to go with a 7 year arm at 5.1 with no pts. I could spend 3100 to get to 4.87.

The 30 year fixed options were 5.8 no pts or 5.5 with 3700 in pts.

We aren’t sure if we want to be at this spot more than 5 years. So I went with the arm.

If we get into the home and like it I’ll look to refinance to a 30 year fixed in the hopes rates go sub 5%.