Gosh !!! Need HELP !!! Please suggest

Saba

I have been ttc for 5 months now, each month I believe this is the month but then I end up getting my period . This month I am late 4 days and I took a pregnancy test which was negative, for a past week I have been having cramps like pain, for the last 2 days feeling dizzy and light headed , and shortness of breath ... please tell me, am I pregnant ????