Hi mommy! Check with your ob, kasi yung iba advise nila after 1st trimester. I’m currently 17weeks, last Saturday ako nagpa booster shot ng Pfizer. My first and second dose is Pfizer din. My go signal naman ako sa ob ko. Yung 1st & 2nd dose ko, sobrang sama ng pakiramdam ko, so I’m expecting na same sa booster shot. Paguwi namin last Saturday, sobrang sakit lang ng ulo ko, nagpahinga at natulog lang ako tska madaming water then shower pagka gising, naging okay naman pakiramdm ko.. Surprisingly, ung arms ko lang ang sumakit other than that wala na.. God bless! 😉