Can these be pregnancy symptoms? Help please!

Hey ladies so my girlfriend and I are TTc we inseminated on the 1st and the 4th . According to glow and flo app I ovulated that week but I tested positive on a opk on the 5th and the 6th but I’ve been having Lower abdomen cramps everyday since with gas coming from both ends along with headaches And also lower back pain on my right side. Can these be signs of something going on in there I’m not even sure how many dpo and when should I test . What are you all thoughts?