I have a phobia of sickness and this affects me greatly. However, it also makes me feel like i'm pregnant all the time. I last had sex a month ago, we used a condom, it didn't split or break, i'm on the pill, i have never missed one or taken it late/early, i've haven't been sick or on antibiotics which could effect it. And i've had a regular period since. What are the chances that i'm pregnant? my boyfriend is always convincing me that i'm not, but i still worry.