Please please help

Hiya so I took ‘plan B’ around a month ago and I’m on the pill too I had just missed 2 pills and the condom broke so obviously I needed to take it, but a month later I have a really weird feeling in my lower abdomen kind of like cramping but less stabbing, my boobs aren’t sore, ima little bloated and I don’t feels sick, Is it just the side effects or should I be worried, I took a test 3 weeks after taking the plan B and it was negative so do I just leave it and wait or do I take another test?