Need help!!

My husband and I have been trying to conceive, my AF which was due on 5/5 came on 5/2 & was very light ( out of the usual) & only lasted 2 days! I used a total of only 4 tampons ( sorry tmi) it is now 5/7 had some discharge today but normal & after intercourse I spotted pink. Then it stopped. I'd like to think it's just the end of my period but my period was so unregular this month & it's always regular it's hard to tell . We did follow the ovulation tests last month I'm just kinda trying to put my mind to ease if anyone else has had anything similar I feel like I'm going crazy.