You should always take a pregnancy test... Just to see
you may also be ovulating and the tender tummy is a symptom of that
If you have symptoms you can do a HPT because symptoms don't show right away, actually you must have enough HCG in your system for your body to actually cause the symptoms so if you have symptoms you should go ahead and do the HPT. Every pregnancy is different I had a great pregnancy with my 3 yr old like literally I had no symptoms of nothing besides fatigue then with this pregnancy I only had bloating, loss of appetite & sore boobs. But no poking or any of those other symptoms people be speaking of. Everyone is different you know? Keep me posted sweetie. God bless and good luck.