Chance I could be pregnant ?

My husband and I have been ttc for 8 months. I have charted my ovulation and taken fertility test and everything is normal. My cycle is every 28 days and my period normally last for 4 days. I had an irregular period on 10/06. I had brown bleeding that only last a couple of hours for 2 days. I have had bloating that has lasted since then and nausea as well. I have have had some minor constipation and have been really tired. My breast have not really hurt at all but i have had frequent urination. I don't want to get my hopes up because I have been disappointed before. I took a pregnancy test last friday and it was negative by my doctor said that I could be 4 weeks along and a urine text not pick up the pregnancy hormone so we did a blood test and I have not gotten the results back yet. Since I have have all of this nausea, frequent urination, bloating and minor constipation could I be pregnant?

Any and all advice is welcomed!!

THANKS

To answer you both: anytime you have sex...there is a chance of pregnancy occuring.

Zig

I need some quick answers please. OK. So i just got over a bladder infection. I had my period at the first of this month and I have had unprotected sex with my fiance almost every night after my period. Multiple times in one night. My period should be coming up in a few days. But i'm not feeling any PMS symptoms as i usually do. I was just wondering what are the chances are of me being pregnant? I know this question sounds dumb. But i have medical problems where i could be infertile. So im just asking.