Hi I Just Have A Query, I Have Had Mild

Hi i just have a query, I have had mild cramping on the left side of my ovary for about 4/5 days with it sometimes leading to sharp pains in my ovaries. I was on the Yasmin pill for about 7 years but then took a break off it for a year. I started back on it on the 2nd of February on a 21 day cycle and only just finished the pill yesterday. I have had sexual intercourse using nothing only the pill as contraception. i have been quite moody this month breaking down crying uncontrollably with no known cause and gagging on a number of occasions however i did not get sick. I got my period as normal last month so thought it would be fine to just start back on the pill. Also i have started taking juice plus vitamin tablets within the last 7-8 weeks is it possible that these may have affected the pill and is it possible i may be pregnant? sorry for all the questions just freaking out