Miss period, period decide to come, pregancy?

Hi everyone! Just a question if you ladies ever had this happend to you. So I had sex in April, we did use condoms but i wasn't sure if it was use correctly. In May, I skipped my period. I thought it was due to stress because I was pretty exhausted from school, work, and the boyfriend and because i thought i was pregnante. I thought I had my period because I saw very light tint pinkish color, i think? But i wasnt sure and still aint sure today if it could be implantation bleeding or my eyes were fooling me. Lets just say I am not positive what it is, with what i saw. My cycle was probably about 55 to 60 days until this month, my period came. It was heavy period like usual, i had bad cramps, my face was breaking out before i had my period, my boobs were sore ever since in May until I had my period this month, it stopped hurting etc. My period this month lasted for 7 days like how it normally does. Do you ladies had this happened to you and soon figure out that you were pregnante even with a normal following period after the month you miss? Please, it will be great to hear back!