Oh god, I used to google every single tummy pain and drive myself crazy thinking the worst! It is usually just the baby making space, but please keep a close watch. If it's on one side only or feels like sharp cramps, it's better to contact your gynac right away just for peace of mind.
I completely understand how terrifying every little ache and pain can feel when you are pregnant, I used to overthink everything! Mild cramping is usually normal early on, but if you are feeling anxious, please just give your doctor's office a call to put your mind at ease.
I can only speak from my own experience, but I had very mild, period-like cramping in my first few weeks which my doctor said was just the uterus stretching. However, if the pain gets sharp or severe, it's always best to get it checked by a professional.
Oh, I remember having bad nausea along with mild tummy cramps during my first trimester, it was so miserable. Mild pulling sensations are quite normal as the baby grows, but please make sure you drink plenty of fluids and rest. If the pain is sharp, definitely ask your doctor.
I panicked so much and rushed to the clinic during week 6 because of mild lower abdominal pain! My gynac laughed and told me it's just implantation and muscle stretching which is totally normal. So don't worry too much, but obviously keep an eye on how intense it is.
Mild, dull stretching pain or light cramping is a very common early sign of pregnancy as your uterus starts expanding. But if the pain is severe, constant, or accompanied by any spotting, you must visit your gynac immediately. Don't take any chances with sharp abdominal pain.