Hi A.. I have a two year old son that I had overseas in Europe. I remember, like every mom, noticing anything new or unusual with my body and I'd ask all the moms around me and my doctor. I'd get so many different answers sometimes that it was overwhelming. I guess because whether we are pregnant or not our bodies are individually unique. There are similarities, but not exacts.
I had cramps throughout my pregnancy. In fact it always fealt as if I were going to have m period and the further alog I got the more intense they were sometimes. I always told my doctor and he would prescribe Magnesium for the cramping. I was healthy and active and tried to keep my portions in control, however my last month and a half, I found I had gestational diabetes. I was able to regulate it with diet.
Anyhow...I said all that to say that stress was there and I think added to the cramping and eventually I think the diabetes did as well. Like the other ladies said, perhaps it's the baby's position, perhaps it's stress, perhaps it is justhow this pregnancy is going to be. Keep monitoring it and keeping your doctor informed.