if you think your pregnant and you bleed a little and then it stops can you be pregnant?

OK, me and my boyfriend had sex like 5 times. Not the same days but different days.

And like, my stomach has been hurting and I have been peeing a lot and sleeping a lot like I just like to sleep now. I stay tired but my period had come on the right day but it act like it wasn’t trying to come on. Like I was bleeding for 1 minute and it stopped and like I came on later that night and now it’s on and off. My period don’t never be like this, man. I threw up.

I wanted to know is this pregnancy symptoms? Plz plz help me