My last LMP was on Feb 6. Donner egg transfer done on Feb 23. Started progesterone medications in all 3 routes on Feb 18. Yesterday was day 21. When I inserted progesterone vaginal tablet, I found pink ting on the tablet when it came out along with inserter. Today is day 22. I again inserted progesterone vaginal tablet with the help of inserter. First, I did not find any blood on tablet when it came back along with inserter.  Second time, it was in, but at the edge of the vagina where it can come out easily. Third time, I pushed it in with the inserter and found fresh blood on the inserter. Is it an implementation bleeding or injury to vaginal wall or about to start period? Need help.