I want to start off by saying that I am extremely new to this community (I think I just posted this question in the wrong forum even *blushes*) and have only for the first time thought to reach out to other women who are or hope to be pregnant for guidance. I appreciate everyone who has a few words of wisdom for me. Please forgive me if I spell lots of uneccesary things out, as I am even unfamiliar with many of the abbreviations I see a lot of you using.
Anyway, I think the center of my problem (along with the age-long wait to be able to take a pregnancy test) centers around trying to figure out when my next period will be, or if it will even come. I will explain. I often have shorter cycles (23-25 days) and others that are more 'normal' (26-28 days). Last cycle I had a stretch of 6 days with mild spotting - and when I say mild I mean not even enough to show on a pad more then once a day. This spotting was followed by 5 days of normal period. After this, my DH finally gave in to my desires to have another child (we have a 4 year old). As it just so happens, the day he 'gave in' happened to be what had a very strong chance of being ovulation day.

Hooray - go me! Now being 5 days after that day, I can't stop wondering if conception could have happened.
I'm getting wordy, I'm sorry. Here is the problem: do I count the first day of all that spotting as the first day of my last period? That would make it the most unusual period I ever had, if so (11 days worth). If I go by 1st day of real period and an average cycle length of 26 days, my ovulation day coincided exactly with the day of possible conception, plus I felt quite certain later that same day that I felt the pinch of ovulation pain. In the days since, I have been feeling crampy, vaguely sick to my stomach and rather tired and moody. All of these things can either be PMS or possible early signs of pregnancy - but is not 5 days post-ovulation too early to feel these things? If I count my period from the very first day of actual period last month, then I am way early for PMS. Even if I count first day of last period from the spotting, I am still somewhat early for PMS. It's way early, I am sure, for a pregnancy test. So here I sit crampy, vaguely sick and totally obsessing over dates and everything I read online.
Any thoughts?