IS THIS PREGNANCY???

I got my period 13,14,15th of February. I had sex the 16th that restated my period. I got my period for the 16,17th and it stopped. It’s February 27th and this been showing up for three days on my panty liners!!!! What is this???

- I been feeling dizzy and having headaches

- loss of balance

- Doctor say it may be my sodium intake.