Hello...
I could use some thoughts from the collective wisdom here.
I would call/page my dr. but I am our of the country, so getting a hold of them is going to be a major producton as calling me back is an issue. But if it becomes neccessary I will of course do that.
Problem...I am on supression meds and asprin, and am due to start estrogen and doxycyclin on thursday (in 3 days). I had a endometrial biopsy as part of my fet protocol 2 weeks ago. My period (after 21 days on bcps) started 4 days ago... the problem is for the past couple of days I have been having pelvic discomfort, it is so especially (but not only) when my bladder is full I feel very uncomfortable, and once I pee it really helps. At first I thought it might be a uti or something, but I have no issues with peeing (no burning, pain, or difficult in going/quantity etc...). Just the discomfort/pelvic pain.... and my period is heavier than usual, especially for a pill cycle...but it is not at the level of "concern" based on normal standards. But it isn't really stopping, and it all seems very fresh...and still the pelvic discomfort that seems to be uterine based. It isn't quite crampy..more of a very sensitive feeling, kind of like after ER for me. It is not severe or I would seek medical care here.
My thought is that perhaps my uterus is bleeding from the biopsy more so than from what should be my period...that the biopsy 'injury' has not healed and is now freshly bleeding..or I have developed an infection... if it is just the biopsy site bleeding I would be less worried I think....my plan is to stop asprin for a day or two and see if that helps...my other option would be to start the doxycyclin early in case it is a developing infection, and/or maybe not start the estrogen and just stay on supression (to hopefully avoid scraping the whole cycle) and see my dr. as soon as I get home (Sunday or Monday).
I would love to hear any thoughts of opinions anyone has...I promise I will not take it as medical advice 
thanks.