Blood pressure?

I am 35 weeks. In the last two weeks I’ve been at the doctors 3 times. Just for a cough and then yeast infection, and today my actual prenatal appointment. However, and the first two appointments my blood pressure was 117/66 both times. Then today, it was down to 103/65. Is this something that is worrisome or should I just be happy it went down? I always had low blood pressure prior to being pregnant.