Eptopic pregnancy question

I had surgery in November to remove an eptopic pregnancy. They had to take my right tube :(. My period started December 29th and I began birth control then. We were told to wait 3 months to try again. So since the surgery we have been careful (or I think we are) to not get pregnant. I have taken 2 Home test and both negative. I should have started my period but have not. I start the new pack of pills tomorrow night.

Here’s my concern. Even with the negative test I am having the same pain I had with the eptopic pregnancy. But this time it’s on my left :( is it possible to be having another eptopic pregnancy? I’ll never forget how bad the pain was with the pregnancy which is why I know it’s the same pain but on the left.

Any advice would be helpful. Thanks