hi, i've had 2 kids already and my husband and i have been having unprotected sex but we dont go all the way meaning he pulls out. my question is that i have missed a whole month without my period, and i usually am a couple day off each month but i usually do start. then i took 4 pregnancy tests and all came back negative. could i be pregnant or coulld it be just stress. please help.:confused: thanks.

It could be stress. A cycle in the normal range can be 19 to 35 days. After 35 days, you should call your dr.