I had sexon the first day of my cycle and my cycle continued as usual. 18 days before my next cycle is supposed to start and 9 days before my cycle is supposed to start, I noticed some spotting (of a brownish color) on my panty liner. Today, which is 8 days from the 1st day of my next cycle, I noticed some spotting again. I've had a lot of gas and some constipation. I've also felt nauseous and very tired during the day at work. Sometimes I feel so tired that my body gets restless and feels like it wants to shut down because I'm fighting the sleep so hard. I've never been pregnant before and my cycle is a 32 day cycle, which is not considered a normal cycle, so I don't really know when I ovulate, but in reading some of these post and a few post on other sites, it is possible to get pregnant while on your cycle, so I was just wondering if there is any possibility that I could be pregnant? If so, is it a slim possibility being that I have what's noted as an irregular cycle and don't really know when ovulation occurs for me?

It's always 'possible' to get pregnant, if you are female and have sex, at virtually any day in the cycle.
Even if the odds are very small.
So we can't tell you online whether you are or not; only a test kit can.
(32 days is not an abnormal cycle at all, but it's not really relevant to when you might ovulate in any given cycle.)

Wait six weeks and take a hpt. I'm irregular to mines sometimes long and short. But don't stress out. If the test don't work try going to a doctor. I hope this help you out