is it possible to go through an entire cycle 3 times in about a month and half... i got my period end of oct. ... then again about 2 weeks later...and then again about a week after that and all 3 times 7 days and normal to heavy flow...i have pcos and i normally go between 4-5months with out a period...is it possible to go through ovualtion and get pregnant in between the 2nd and 3rd period of that time span... ? i took a pregnancy test last week and came up negative. but i feel like i could be pregnant...is it possible?