Possibly of pregnancy? tmi

hey ladies, i’m a little embarrassed by posting this as why i’m going anonymous but i’m 3 days late for my period and keep getting period like cramps for about 15 seconds every couple of hours that just turn into “extreme” pressure in my vagina area. i’ve also felt a sudden rush of fluid which i think at the time is bleeding but when i check it’s just really watery like ovulation cm. i did have unprotected sex everyday of my fertile window except ovulation day and the days following but my SO came in me a slight amount. i know you won’t be able to tell unless i take a test off a post but does this sound like pregnancy symptoms? i just don’t want to rush out and get a test if af is going to arrive. furthermore i have no symptoms of pregnancy nor af except cramping but both are common in each situation. i also got sick right before my period and completely sh*t my brains out and puked. please am i going crazy or should i test ? also if i should test what’s a good brand to go with?