It's normal to feel some "tightening" pains, if that makes sense! Similar to regular menstrual cramps. If they are very strong pains, have the doctor check to be safe!
I'm 8 weeks and a few days and I had a day and half of cramping a couple days ago. I would describe it as moderate cramps that felt menstrual. It definitely didn't feel great but most of the week by week sites describe some cramping as common around this time.
I had some at 8 weeks and still do at 9 weeks almost 10 it's off and on , i told my doctor and she said it was normal growing pains. Ask your doctor or call your doctors nurse they can answer any questions you have that's what mine told me to do
Answers
Married March 2016
DD: born 7.22.16
DS EDD: 6.23.18