Need Help Ladies

Me & Myhusband have been TTC &  onSunday I Was On Day3 of AF but we decided 2Have sex. confusin part is every since MondayMornin i have been havin Cramps here &there. Sometimes i wake up w/ strong cramps &on Sunday it Makes1 Week which is FathersDay, should i test Early &see if i get a BFP or wait Another Week? I really wanted to surprise him on fathers day 😭😰