I took 2 morning after pills this month one before ovualting one 1 after. my period 4 days light on only lasted 1.5 days. could i be pregnant?

Maybe not, but...: Plan B (emergency contraceptive pills) can alter the menstrual bleeding for the cycle in which Plan B was taken, and sometimes the next cycle too. One should be sure to check a home pregnancy test about 3 weeks after sex, because Plan B works most of the time, but not all the time. Also, one should use a good "Plan A" (regular, reliable contraception) so not to need Plan B again.