My last period started on the 3rd and I had sex on the 19th. We used a condom and it didn't break, but due to prior precum there could've been a slight possibility that some could've gotten in. I'm very nervous and need reassurance. I usually have my period every 28 or 29 days but it has been 30 and I don't really feel it coming. I don't really feel symptoms of pregnancy except for bloating. What are the odds I could be pregnant????