Went off birth control, am I pregnant?

I have been on the birth control pill Ocella (generic of Yazmin) for four years. On May 4th (Wednesday) I went off my "active" pills and started my placebo pills in that month's pack. I had intercourse on either Wednesday or Thursday (I'm not 100% sure which day) and we did not use a condom because with Ocella you are still supposed to be "protected" while on the placebo pills. I got my period the following Monday and had planned on going back on my active pill that Wednesday. However the drug company forgot to mail my new packs. By the time I called my doctor it was too late for me to start a new pack and they told me to wait until my next period. My next period never came, but I have been having some normal menstrual symptoms like back pain, cramps, and bloating (however they haven't been as severe or constant). In addition my nipples have been slightly sore which isn't a normal symptom for me. I have read online many, many instances in which women went off their active pills and didn't get their periods for months and still had symptoms like mine (including new symptoms), but they weren't pregnant. I guess I'm asking if it's more likely for me to be pregnant (even though I've had a period after last having sex) or not after looking at of my symptoms. Please only serious answers, thank you all so much!