Should I take a pregnancy test?

Okay so I have a bad habit of missing 3 or 4 birth control pills in a row and nothing has ever happened. I’m *usually* pretty cautious and try to avoid sex or use other forms of contraception when I forget. Well I just forgot 3 pills in a row because I was out of town and forgot my pills at home. I took two last night so I can catch up on them but today I randomly started bleeding pretty lightly. I have ZERO period symptoms. I always cramp ridiculously for the first two days so that was very weird to me because in the 12 years I’ve had periods I’ve never had one where I didn’t cramp. I’m supposed to start my period in a week. Does this sound normal or should I take a pregnancy test?