Thanks for the query to H.C.M. Forum.
As soon as ovulation occurs and it fertilize and fertilized ovum implanted means pregnancy
is there .
However after fertilization bleeding does not occurs but after 14-15 days ,noticed.
Once there is pregnancy hormonal
changes started and pregnant lady feels symptoms as you are feeling.
However such type of symptoms may be due to other reasons also.
So don't take any tension ,wait for menses date , if delay ( 7 days ) then get a home pregnancy test .
Till take antacid
for relief as well lemon juice .