What Causes Tender Breasts And Morning Sickness After Microgynon Usage?

i have taken microgynon for bout 12 yrs i have 2 kids an it has never failed recently i met a new partner an took 1 packet after the other i still have bout 2 wks left of that but have been feeling really sick in the mornings for the last week and now have really tender breasts is that the result of taking 2 packets im 28 5 foot 2 and 8 stone