what's making me spot?

Alex
I cant get to a doctor today or tomorrow and I cant work out if i need to take action or not!
I used to take the combination pill, but my new doctor didn't like the idea of prescribing it to me because we couldn't be sure if I'd had a migraine before or not, and then while the pill hadn't taken effect yet i had to take EC due to a broken condom.
Ive spotted before because of birth control so I thought it may be the new pill causing me to spot, in which case i need to change back, but then i remembered about the EC so I'm wondering if thats what's making me spot - so should i go to the doctors for a different pill or wait for my next period to see of the spotting stops? I really hate the smell of blood in my underwear all the time so any advice would help!