Could I be pregnant

Hi guys please help. I got my periods on the 4th-11th of December. I then had sex on the 21st of December and then got my periods again on the 24th of December - which is weird for me to get it twice in a month - I then did a pregnancy teston the 5th of January and it came out negative. I got light bleeding like this for 5 days from the 18th-22nd of January. I did another test on the 28th of January and it came out negative. I then got my periods the same as in the pictures on the 2nd of ferbruary. Can I be pregnant? I’m slightly bloated and have very runny saliva.