4 dpo but its different this time

Usually I get "pregnancy symptoms" but theyre really just me over thinking and making me believe I have pregnancy symptoms. But this time its different.. Im only 4 dpo (i actually thought i hadnt even ovulated yet but my dates were off) and ive been EXTREMELY gassy. And its BAD gas too. Im NEVER this gassy.. I burp quite a bit but I honestly never fart (tmi sorry) and i keep having pelvic pains randomly. At 2 dpo the pains were so bad i could barely stand up. My nipples have been kinda sore too but that MIGHT be because of my nipple piercings since theyre getting close to healing. What do you think?