Could I be pregnant ?

I started ovulating February 1-5, Me and my boyfriend had unprotected sex 4 times on the 5th and once on the 6th, my period is supposed to come on the 18th now I’ve been bloated, lightheaded, dizzy, headaches, getting more hungrier and I had 2 dreams last night I woke up in tears, 10x sensitive I cried last night about the littlest thing