I have had mutiple miscarrages. I do not believe this sounds like you were pregnent at any time. It sounds like just the random crazy things that goes on in the average dqay of a womans body. With a miscarrage it is incredably painful even early on. There is no way to know for sure. A preg. test will show a false positive if this is something that just happened like today. A false positive means you were preg but you body has not had time to regulate it's hormone levels yet. You can get a positive when you are not pregnent this way. After a day or two passes the test will be negative again. I took those injections at one point in my life and hated it for that very reason. Light periods, missing periods, flooding periods, weight gain, strange cravings, so I just quit using that method. Now we use the 3 kids who has time or sanity method. I wouldn't recommend it. It's expensive. Only kidding I love my kids.