pregnant?

So, I ovulated the 28th. We had sex the 27th, the 3rd, 4th, and 7th using the pull out method each time. The 3rd and the 4th I had spotting and cramping. Now I have headaches, I'm bloated, and my boobs are sensitive and are getting little purple veins on them. I feel sick random times of the day and I'm so so so tired.  My period is due tomorrow. Could I be pregnant?