My last period was April 10, 2011. This was the first period after having a partial molar pregnancy in October. I was given the depo shot at that time and didn't have a normal period until then. I was awaiting my period in May and it never came. Finally, I discovered that I was pregnant. My doctor did an ultrasound and said that it appeared as though I was about 4 weeks pregnant. That was last week. They did blood work last week and again this week, and said that my blood work looked good. She then asked me if I was sure that I didn't have a period in May, I of course was certain that I hadn't. She then said that the only thing that seemed to not be adding up was that I didn't have a period in May. She said that this pregnancy would be more consistent if I had had a period in May. So, I am worried that something may be wrong again. Isn't it possible that my body just ovulated at a weird time due to my system not really being regular since the depo shot in October? Worried...