Pregnant??

So I have been on the pill for about 6 months and I usually get my period every month but last month it was only some brown blood for like 2 days and was very light. My period for this month still hasn’t turned up and I feel very bloated. I take the pill at different times each day and about 2 days after I had sex I forgot my pill then the next day I was drunk and boked my pill up and wasn’t at home to take another one. I took a pregnancy test about 3 weeks ago and it was negative. What do u think is it just my pill doing this or could I get pregnant??