Last month, my period lasted from 5/22-25 then I noticed spotting when I wiped on the 28th & 29th. I usually have a 6-7 day period, horrible cramps & HEAVY(2boxes of s+), but this time it was light & a LOT less painful. I have been having stomach pains/cramps & a headache since 5/20 & threw up yellow bile on 5/27 for the first time. My boyfriend & I had sex on 5/7(for sure, which was my calculated ovulation date) & a couple of other random times scattered throughout the month: unprotected, as we are trying to conceive. Is there a chance that I conceived this month?