After taking the morning after pill levonelle, I had excessiva saliva in my mouth for a few days, followed by a heavy period. After the period, I developed cravings for sweet and savoury foods, and what bothers me is that I continue to salivate and have cravings, also my stomach is growing and I have put on a lot of weight. I have had 5 pregnancy tests which were all negative.My last period in September was very light and short. Could these be the side effects of the morning after pill or could I be pregnant? I also have a cyst, what could be the problems?