That happened to me on first cycle we were trying and I wasn’t pregnant I felt like my body trying so hard to be pregnant 😂😂 but second cycle cycle I got pregnant with no symptoms at all till 6 weeks Period and early pregnancy symptoms are the same
You don’t implant until 6-12dpo (8-10 being most common) then it can take 48 hours for your body to really know/ start symptoms.
Might be! Go get a test 🤞🏼