i’m scared..

i had my last period however me and my lover had sex the day of me being most fertile.. he pulled out i was in front and he was behind and i took a test which came out negative. i’ve been gassing, bloated, cramping.. no blood no sore breast no morning sickness nothing out of the normal besides what i listed.. i just don’t know and i’m worried.. I DEFINITELY DO NOT WANT A BABY. not rn...