so it was a day late

I'm 30 been ttc since last yr miscarriage. on may 7 been trying ever since then had anuovulation the month of June and July by August after the doctor gave me Clomid my cycle was starting to be on point okay so like I said I've been trying stressing I was late took a test it was negative then I seen pink got excited then I see red but never. heavy just a little everyday dark red to dark brown today which this time I was very light and only lasted 4 days could I still be pregnant are that was a normal cycle I normally go 5 days heavy. been feeling light cramps on the left lower side answers Please and good morning