Trying. With no results.

I am 23 yrs old. Been married for a year. Healthy, active, normal cycles, ext. ext. I got pregnant with my now 3 yr old when I was not expecting it. It happened very easily, and with 0 complications. My pregnancy, delivery, and everything went so easy. Now, we are settled in and ready for a second baby, but after 1.5 years of trying- Im getting very negative about it ever happening. I do have ovarian cysts, but since I have started using progesterone cream, those dont bother me anymore. I am also staying active, taking prenatals, and drinking myself to death with water. We have sex on a regular every-other-day basis and still no baby. Im just so uneasy about this. I become a blubbering mess each month that I have my period. I dont know what else to do. Does anyone else have some information or thoughts? Thanks.